T.M.I.
S1, E21: When Bulkhead's brain is accidently endowed with the secret formula for synthetic Energon, he becomes an intellectual recluse while the Decepticons hunt him down for the information.

S1, E21: When Bulkhead's brain is accidently endowed with the secret formula for synthetic Energon, he becomes an intellectual recluse while the Decepticons hunt him down for the information.