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

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

Above the planet where the Allspark lies, the Autobots and Decepticons battle while Deseeus closes in to exact revenge upon them all.

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.

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.

Optimus encounters an unexpected guide who shows him a possible future. Megatron meets an entity who tells him what he needs to take from Optimus.