Olive, Andrea, Emma, Mia, and Stephanie are five best friends on a mission, embarking on a series of challenges and adventures in their beautiful Heartlake City.
The girls want to be sure they find the treasure before Carter does, so they get a scuba lesson from Andrea's dad. (S2, ep 11)
When City Hall gets shut down for renovations, the girls discover a secret a side to Heartlake they never knew existed. (S2, ep 9)
When Stephanie's sister Roxy goes missing during her musical performance, the girls investigate her disappearance and find more than they expected. (S2, ep 10)
The girls piece together clues with a map of the old town and discover the map to the shipwreck of the Heart of the Sea and its treasure! (S2, ep 12)
The girls are approached to star in a documentary about Heartlake City, but soon realise that the producer is really Carter Greene! (S2, ep 8)
Mia finds a treasure map, while Carter is sure there is real treasure aboard the Heart of the Sea and he's not giving up until he finds it. (S2, ep 3)
Andrea's focus on winning the Heartlake City talent show makes her lose focus of what's really important. (S2, ep 14)
When Heartlake City has a blackout, the girls spring into action, discovering that the bank has been robbed of one of the town's oldest treasures. (S2, ep 2)
When newcomer Carter Greene learns about a Heartlake City explorer's long lost shipwreck, he is determined to get its treasure - and he always gets what he wants. (S2, ep 1)
Frame & Fortune: When an explorer's painting is stolen from the art museum, Emma must test her art skills by creating a decoy to save the matching painting. (S2, ep 6)
Locket & Key: When Andrea's family heirloom goes missing, she realises that it was actually stolen - and is a clue to the Heart of the Sea shipwreck. (S2, ep 7)
Everyone in town is excited to grow plants in Carter's donated community garden - only to discover that the water for the plants is coming from the lake! (S2, ep 5)
Determined to protect the Heart of the Sea from Carter, the girls set off to find the treasure in a race to see who can get there first! (S2, ep 13)
Mearff: When Liz reveals her new pet translation app, Mearrf, a day at the amusement pier proves to be more of a rollercoaster than the girls expected. (S2, ep 15)
When the girls stay overnight in a lighthouse, Emma wonders if the old lighthouse keeper's spooky journal is connected to strange occurrences. (S2, ep 16)
The girls use all of their talents to help save Barney from being forced out of the police force and help Officer Laura keep her partner. (S2, ep 17)
When the girls take over for Dean at the Cupcake Cafe, Zobo malfunctions and leaves destruction in his wake. (S2, ep 18)
Stephanie's plan for a fun day on the yacht is derailed when the girls run out of fuel, but their misadventure leads to an important discovery. (S2, ep 19)
When the girls look into the underwater dredger they saw, they learn that Carter is up to something again and this time it's dangerous. (S2, ep 20)
When Andrea loses her voice and has to rest it, the girls keep her busy until she can talk again. (S2, ep 21)
A stakeout to catch Carter in the act, leads to the girls making a new friend. The girls welcome Kacey into the group, but their new friend has ulterior motives. (S2, ep 22)
The girls discover that Carter has plans to build an underwater hotel. They have to stop him before it destroys all of Heartlake City's marine life. (S2, ep 23)
At a fundraiser, Carter's project causes the boardwalk to become unstable, so Andrea has to use her performance to keep the audience safe. (S2, ep 24)
Fed up with Carter destroying their town, the girls show him that no one messes with Heartlake City! (S2, ep 25)
The girls return the sea-life back to their home in the water, and Heartlake City rallies to make the bay a sanctuary, so no one can harm it again. (S2, ep 26)