Cybertron
S2, E5: After a perilous journey to Cybertron, the Autobots and Decepticons vie for control of the Omega Lock, and Optimus and Megatron fight their ultimate battle.

S2, E5: After a perilous journey to Cybertron, the Autobots and Decepticons vie for control of the Omega Lock, and Optimus and Megatron fight their ultimate battle.