The episode descriptions aren't really spoilers but I have included spoiler filters just to be on the safe side.
MSN.com wrote:Darkness Rising: Part 1
The return of the Decepticons.
Darkness Rising: Part 2
The Autobots are met by Megatron.
Darkness Rising: Part 3
Bulkhead tries to rescue Agent Fowler.
Darkness Rising: Part 4
Megatron and an army to fight against the Autobots.
Darkness Rising: Part 5
The fate of the earth hangs in the balance.
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