Transformers: Prime Episode 31 Operation: Bumblebee, Part 2.Ratchet, still racked with guilt over being unable to repair Bumblebee’s voice box during the war, volunteers to give Bumblebee his T-Cog via transplant. However, the eventual transplant is interrupted by an alarm signalling the appearance of another Cybertronian relic: The Forge of Solus Prime. While Optimus, Bulkhead and Arcee go to retrieve the Forge, Agent Fowler calls the base to inform the Autobots that he has received possible coordinates of a M.E.C.H hideout. Seeing an opportunity, Bumblebee storms the M.E.C.H. hideout to get his T-Cog back.