Episode 1
The Autobots go on alert as the Decepticons return to Earth in the series opener, Meanwhile a group of humans find themselves with new caretakers after stumbling into the middle of the Autobot conflict with the Decepticons.
Episode 2
The Autobots go in search of Cliffjumper, whose life signal is weak and find Megatron wielding the dangerous dark Energon.
Episode 3
Bulkhead is unknowingly shadowed by Miko as he goes to rescue Agent Fowler, who was kidnapped by the Decepticons.
Episode 4
The Autobots try to stave off an attack from Megatron's Terrorcons to protect their human wards.
Episode 5
The Decepticons and the Terrorcons go into battle against the Autobots.
Episode 6
Starscream pursues other interests while Skyquake battles with Optimus Prime and Bumblebee.
Episode 7
Scraplets invade HQ while Optimus and Arcee patrol the Arctic, leaving Bumblee and Ratchet to repel the enemy.
Episode 8
Bulkhead awaits a visit from his buddy Wheeljack, but his arrival does not go as planned.
Episode 9
The Autobots are attacked while helping Agent Fowler transport an implosion device.
Episode 10
Miko and Bulkhead go up against Starscream and Breakdown as they go to Greece to retrieve an Energon Harvester.
Episode 11
Jack tries to be impressive, with Bumblebee's help, but Knockout's arrivals sends things out of control.
Episode 12
Arcee must protect Jack when a routine mission is complicated by Airachnid's arrival.
Episode 13
A Decepticon plague infects Optimus Prime, so Arcee and Bumblebee sneak onto the Nemesis to find the cure.
Episode 14
Megatron controls Bumblebee from inside his mind and influences his behavior at HQ.
Episode 15
The kids are stranded with Skyquake in an alternate dimension during a GroundBridge malfunction.
Episode 16
MECH agents capture a Decepticon, and the Autobots mount a rescue.
Episode 17
Airachnid makes a deal with Silas to get revenge against Arcee and Jack.
Episode 18
The Autobots try to claim a magnetic weapon before the Decepticons get to it.
Episode 19
Two patrolling Autobots end up trapped in a cave with their enemies, Starscream and Megatron.
Episode 20
Starscream makes an unexpected request after he is captured by Optimus.
Episode 21
Bulkhead acquires a top-secret formula, and the Decepticons come after him for it.
Episode 22
Ratchet becomes a threat to everyone after he injects himself with an experimental substance.
Episode 23
The Decepticons quickly try to build a space bridge before a prophesied darkness arrives.
Episode 24
Earth has an outbreak of natural disasters, caused by Dark Energon.
Episode 25
The Autobots acquire a surprising ally in their battle to save Earth.
Episode 26
The Autobots go to the Earth's core to fight for the planet; and Jack uncovers info about Optimus' background.
