Darkest Hour
Due to Megatron's crafty plan, Optimus must make a hard decision which could affect the whole Autobot team.
More from Season 2
Episode 1
Orion Pax (1)
Megatron manipulates the impaired Optimus into joining the Decepticons.
Episode 2
Orion Pax (2)
Jack learns how to restore Optimus' memory.
Episode 3
Orion Pax (3)
Optimus begins to piece together his real identity using several clues (including Starscream referring to his as a "prime" -- whoops!), and eventually rebels against Megatron’s orders. Meanwhile, Optimus' Autobot pals hatch a risky plan to get their leader back.
Episode 4
Operation: Bumblebee (1)
Bumblebee questions his worthiness to his team after he is compromised.
Episode 5
Operation: Bumblebee (2)
Bumblebee discovers that MECH and Starscream are responsible for his troubles; Ratchet confronts demons from his Cybertronian past.
Episode 6
Loose Cannons
Wheeljack returns to Earth, hot on the the trail of Skyquake's brother Dreadwing.
