A single father experiences the trials and tribulations of raising a group of young chipmunks who are also famous rock stars touring the world with their best friends, the Chipettes.
A favourite toy of Theodore's gets lost on a rafting trip. And, when it mysteriously shows up at the house, it's alive. (S4, ep 1)
Miss Croner attempts to help Theodore discover his destiny in 'Theodore's Calling', then in 'Clumsy Jeanette', Jeanette's new glasses cause a clumsy change. (S4, ep 2)
Miss Croner attempts to help Theodore discover his true calling in life. (S4, ep 3)
Theodore gets roped into doing Alvin's job in 'Adventures in Babysitting', then in 'Alvin's Assistant', Kevin agrees to be Alvin's assistant but ends up running errands instead. (S4, ep 3)
Jeanette is suddenly the clumsiest person on the planet. Is there something wrong with her - or is it her new glasses? (S4, ep 4)
Alvin and Simon have a secret club in 'Mysterions', and in 'The Crow That Ate My Homework', Dave promises to take Alvin to a park if he gets a good grade on his test, but a crow steals it. (S4, ep 4)
Theodore gets roped into doing Alvin's babysitting job, which involves looking after a spoiled four-year-old. (S4, ep 5)
Simon agrees to do whatever crazy thing Alvin wants him to do in 'Simon Says', then in 'Sing Like A Canary', a cute singing bird replaces Alvin in the band after he makes too many demands. (S4, ep 5)
Kevin agrees to be Alvin's assistant to get closer to the music industry, but ends up running errands instead. (S4, ep 6)
Pirates show up at the house in 'Pirates Life', then in 'World Record', The Chipmunks and Chipettes compete to set a world record in hopes of winning a new virtual reality game. (S4, ep 6)
When Theodore discovers Alvin and Simon have a secret club, he promises not to tell anyone if they let him join. (S4, ep 7)
Alvin talks Dave into a poor scheme in 'Tour Bus', then in 'Game Show', Alvin signs the Chipmunks up for a game show that forces losing contestants to perform dangerous stunts. (S4, ep 7)
Dave promises to take Alvin to a waterpark if he gets a good grade on his test. But things go wrong for Alvin, when a crow shows up. (S4, ep 8)
Alvin accuses Dave of yelling at him too much in 'Alvin Management', then in 'Time Capsule', the school digs up an old high school time capsule, and Miss Smith and Dave keep an old secret. (S4, ep 8)
The Chipmunks and Chipettes play in a dodgeball tournament in 'Munk Vs Machine', then in 'Shack Magic', The Chipmunks find a shack that magically fills with toys and games, but is it magic? (S4, ep 9)
A cute singing bird replaces Alvin in the band after Alvin makes too many demands as a performer. (S4, ep 10)
Theodore mistakenly thinks he's the oldest brother in 'Big Bro Theodore', and in 'No Putts, No Glory', Alvin fools Theodore into believing he's good at mini golf which of course backfires. (S4, ep 10)
Theodore mistakenly thinks he's the oldest brother in 'Big Bro Theodore', and in 'No Putts, No Glory', Alvin fools Theodore into believing he's good at mini golf which of course backfires. (S4, ep 10)
Pirate's Life: When pirates show up at the house, the boys do all they can to protect a treasure chest that arrived for Dave. (S4, ep 11)
Dave is awarded for an award that is not what he thinks it is in 'Granny Awards', then in 'Sick Day', Alvin and Kevin pretend to be sick to miss school and visit the Dagarack Convention. (S4, ep 11)
Dave is awarded for an award that is not what he thinks it is in 'Granny Awards', then in 'Sick Day', Alvin and Kevin pretend to be sick to miss school and visit the Dagarack Convention. (S4, ep 11)
The Chipmunks and Chipettes compete to set a world record in hope of winning a new virtual reality game. (S4, ep 12)
The chipmunks think Dave is in danger in 'The Exchange Student', then in 'Crystal Ball Birthday', Annie and Amber plan Brittany's birthday party, pitting her against Jeanette and Eleanor. (S4, ep 12)
When Alvin talks Dave into buying a used tour bus, Dave has no idea of the problems ahead. (S4, ep 13)
Theodore helps Simon to try and get past his perfectionism in 'Artsy Smartsy', then in 'The Crush', Simon has a crush on the babysitter and secretly prepares a romantic dinner. (S4, ep 13)
Theodore helps Simon to try and get past his perfectionism in 'Artsy Smartsy', then in 'The Crush', Simon has a crush on the babysitter and secretly prepares a romantic dinner. (S4, ep 13)
Alvin wants the lead role in a play in 'Best in Shoe', then in 'Royal Pain', Brittany becomes convinced she's a long lost princess, and carries her new royal status a little too far. (S4, ep 14)
Alvin accuses Dave of yelling at him too much, so a therapist moves in to help Dave control his anger. (S4, ep 15)
Coach Dobkins kicks Cheesy and Theodore off the track team in 'Between a Rope and A Hard Place', then in 'World Day', The Chipmunks each get represent a country for a school presentation. (S4, ep 15)
Coach Dobkins kicks Cheesy and Theodore off the track team in 'Between a Rope and A Hard Place', then in 'World Day', The Chipmunks each get represent a country for a school presentation. (S4, ep 15)
When the school digs up a time capsule, Miss Smith and Dave work together to keep an old secret. (S4, ep 16)
Theodore is training for a TV baking competition with Eleanor in 'Allergic Reaction', then in 'Lice-enced to Teach', Dave sets up a classroom in the house, and becomes the teacher. (S4, ep 16)
Munk vs Machine: The Chipmunks and Chipettes compete in a dodgeball tournament, but no-one expects Theo to be their secret weapon. (S4, ep 17)
Derek plans a wild party at Alvin's house in 'Animal House Party', then in 'Dr. Zap vs Electroboy', Theodore is hit by lightning and believes he's like his comic book hero. (S4, ep 17)
The Chipmunks find a shack that magically fills with toys and games, but is it magic or something more sinister? (S4, ep 18)
The boys disobey Dave's orders to not play a dangerous game in 'Mega Bounce Battle', then in 'Gossip Guy', the school newspaper has a sudden increase in sales when a gossip column appears. (S4, ep 18)
When Theodore mistakenly thinks he's the oldest brother, he tries to be a better role model for Alvin and Simon. (S4, ep 19)
Jeanette and the Chipmunks rescue a chimpanzee in 'Chimpmania', then in 'Dad Jokes', Dave will be hosting an auction where he'll have to tell jokes, but will Alvin tell him he's not funny? (S4, ep 19)
Dave is thrilled when he thinks he's been nominated for a Grammy, but it's actually an award for ageing musicians... (S4, ep 20)
Alvin sneaks into Simon's new virtual reality game in 'The Chosen Chipmunk', then in 'Double Dangus', Officer Dangus has a twin brother that's a bully, which will not do. (S4, ep 20)
No Putts No Glory: Alvin's plan to tricks Theodore into believing he's great at mini golf backfires when Theo signs up for a tournament. (S4, ep 21)
Alvin packs a whole summer into one just day in 'Last Days of Summer', and in 'The Littlest Robot', Simon invents a robot with emotions and an ability to learn which quickly backfires. (S4, ep 21)
Alvin and Kevin pretend to be sick to miss school and sneak off to the Dagarack Convention. (S4, ep 22)
Dave gets bad reviews on the internet in 'You Troll', then in 'Life of the Party', The Chipmunks along with Kevin and Cheesy decide to crash BoCarter's party after not being invited. (S4, ep 22)
When an exchange student comes to visit, he tells a scary story that makes the Chipmunks think Dave is in danger. (S4, ep 22)
Eleanor and Jeanette wonder if Brittany would care for them in 'Sick as a Chipmunk', then in 'Instant Gram, Dave makes several embarrassing posts on social media, and Alvin tries to help. (S4, ep 23)
Annie and Amber offer to plan Brittany's birthday party, pitting her against Jeanette and Eleanor in the process. (S4, ep 23)
The Chipettes fall in love with a cute little mouse in 'Of Mice and Munks', and in 'Simon Saves the World', Simon's new invention creates a time loop and changing gravity inside the house. (S4, ep 24)
Simon needs to complete an art assignment but his perfectionism is seriously slowing him down. Can Theodore help? ( S4, ep 24)
Alvin kidnaps Simon's robot Geizmo in 'Geizmo's Day Out', then in 'Unbored', when Dave takes away Alvin's phone, the boredom Alvin experiences is enough to drive him crazy. (S4, ep 25)
Simon has a crush on the babysitter and secretly prepares a romantic dinner. Meanwhile, Theodore battles to distract Alvin. (S4, ep 25)
To land the lead role in a play, Alvin wagers Brittany that he can remain in character as a shoe cobbler. (S4, ep 26)
When Brittany becomes convinced she's a long lost princess she carries her new royal status a little too far. (S4, ep 28)
Coach Dobkins kicks Cheesy and Theodore off the track team for being slow, but Theodore is determined to compete. (S4, ep 29)
To celebrate 'World Day' and win a trip, the Chipmunks each get a country to represent for a school presentation. (S4, ep 30)
While training for a TV baking competition with Eleanor, Theodore develops an allergy to an unknown ingredient. (S4, ep 31)
When Derek overhears that Alvin and his brothers are alone for the weekend, he plans a wild party at their house. (S4, ep 32)
After a lice outbreak closes the school, Dave sets up a classroom in the house and acts as the boys' teacher. (S4, ep 33)
Jeanette and the Chipmunks orchestrate a break-in at Bocarter's house to rescue a chimpanzee he keeps in a cage. (S4, ep 33)
Dr Zap vs Electroboy: Theodore is hit by lightning and believes he's like his comic book hero, until he's told he's actually a villain. (S4, ep 37)
The boys disobey Dave's order to not play a dangerous game then have to hide their injuries when they get hurt. (S4, ep 35)
The school newspaper has a sudden increase in sales when a gossip column appears poking fun at other students. (S4, ep 36)
Alvin is alarmed that Dave will be hosting an auction where he'll have to tell jokes because he's not that funny. (S4, ep 38)
Alvin sneaks into Simon's new virtual reality game and is transported to a world in desperate need of a hero. (S4, ep 39)
The chipmunks discover Officer Dangus has a twin brother that's a bully and encourage Dangus to stand up to him. (S4, ep 40)
The Last Day of Summer: Alvin wastes his entire summer playing a video game then tries to do all the fun things he'd planned in one day. (S4, ep 41)
Simon invents a robot with emotions and an ability to learn which backfires when he's exposed to the internet. (S4, ep 42)
After caring for a sick Brittany, Eleanor and Jeanette wonder if Brittany would care for them if they were sick. (S4, ep 43)
The chipmunks try to keep Dave from getting on the internet after a performance he posts gets negative comments. (S4, ep 44)
The chipmunks, along with Kevin and Cheesy, decide to crash BoCarter's birthday yacht party after not being invited. (S4, ep 45)
Dave gets an "Instant Gram" account and after several embarrassing posts, Alvin does all he can to stop him. (S4, ep 46)
The Chipettes fall in love with a cute little mouse that's doomed to be fed to a snake as part of a science class. (S4, ep 47)
When Dave takes away Alvin's phone, the boredom Alvin experiences is enough to drive him crazy. (S4, ep 49)
When Alvin kidnaps Simon's robot Geizmo, he gets a lesson in parenting a child going through their terrible twos. (S4, ep 50)
A Very Merry Chipmas - Part 1: Theodore is mistaken for an elf and whisked off to the north pole to help build toys in Santa's workshop. (S4, ep 51)