Transformers (1984) 2-A

'Power Play'
Having learned that the Earthlings have access to the resources required to give them fuel, Megatron and the Decepticons attack the Harrison Nuclear Power Plant and strip it for their own use.

Elsewhere in Oregon, "Sparkplug" Witwicky repairs the damaged Bumblebee and offers to help the Autobots convert standard earth fuel into a sort the robots can use to power themselves up. Unknown to all, Ravage records the plans of Buster and "Sparkplug" to assist the Autobots, and the Decepticons launch a pre-emptive strike at the Witwicky garage, capturing "Sparkplug" and leaving the Autobots barely able to stand after the vicious battle.