The Autobots locate the Allspark, but a deserted space station and its lone occupant stand in the way. The Decepticons catch up with the Ark.

Megatron faces a life-or-death situation. As the Autobots and Decepticons work together to fight against Scorponok, Starscream tries to seize power.

Believing the Allspark destroyed, Megatron plans to flee the dying planet — but at great cost. Elita’s plan to free some prisoners hits a snag.

Mercenary Transformers come upon the Ark adrift in space. As unlikely allies arrive to rescue the imprisoned Autobots, Megatron reveals Project Nemesis.