Kai, Lola, Rammy and Bobbi are four heroic young deer that protect the animals who live in Central Forest and the people living in Platinum City, the futuristic metropolis that surrounds it.
The Deer Squad release evil Baron Bite and his minions from their icy prison. Sir Steel and the Squad battle Baron Bite with the help of Professor Scratch, but who will win? (S4, ep 1)
Bobbi's buns cause chaos in space in 'Buns In Space', then in 'Scratch And Sniff', Kai's Robo-Rose causes a stinky issue! (S4, ep 2)
Kai helps Penguins fly in the sky in 'Penguin Peril', then in 'Fix It Fair', Sir Steel disrupts the Fix-It-Fair. (S4, ep 3)
Kai's Dojobot for training the Deer Squad is stolen in 'Dojobot', then in 'A Shark's Life', Lady Fluffpot spots a sea Monster whilst swimming at the beach! (S4, ep 4)
A Professor Scratch invention makes Sir Steel too strong in 'Strength Of Steel', then in 'Bubbles, Bubbles, Lots Of Trouble', Kai's stowaway Bubble Alien causes problems when it gets wet! (S4, ep 5)
Baron Bite creates a slushy ice cloud that brings the blizzard in 'Slushy Storm', then in 'Cowboy Steel', a game of wild west gets out of control when Cowboy Steel's Robo Pony gets wet! (S4, ep 6)
Baron Bite steals a submarine from Sir Steel in 'Rise Of The Sub-Zero Sub', then in 'Balloon Bonanza', the Deer Squad's planet powers bring Trick Alien's giant balloon animals to life. (S4, ep 7)
Sir Steel sails towards a dangerous purple slime waterfall in 'Steel Man Steel', then in 'The Mystery Heroes', Drillnose Beetles are destroying the forest and two mystery heroes arrive. (S4, ep 8)
Baron Bite steals Jade's powerful Cool Crystal in 'Winter Is Coming', then in 'Kite Fright', Professor Scratch creates an eagle kite for the twins, but it flies out of control. (S4, ep 9)
Sir Steel wants Platinum City to win a musical award in'Musical Mayhem', then in 'Dinobadbot', Baron Bite uses a Control Collar to place Dinobot under his command and builds a snow army. (S4, ep 10)