Season 2, Episode 13: The Insecticon Syndrome
Here’s as far as Phil got on this episode before he started to cry:
The Autobots are in a state park, looks like Washington. There’s some torn-up trees, and the park ranger is confused. The insecticons probably did it. Just saying.
Some giant figments are eating the trees. I think Starscream may be humping a tree and I don’t know how to deal with that. Oh god Bumblebee is back SHUT UP they’re getting away what? now it’s time for a commercial break.
For a proper synopsis see The Transformers Wiki entry for this episode.