Transformers Prime Beast Hunters Season 3 Episode 8 Thirst

Knock Out is researching Ratchet's synthetic Energon formula, having recovered a sample, and is using Silas (who is still implanted within Breakdown's corpse) as a test subject. The formula makes Silas extremely aggressive, so Starscream suggests injecting him with Dark Energon to make him easier to control. However, the mixture of the two Energons turns Silas into a mindless zombie craving fresh Energon, and he wanders the ship infecting any crew member he encounters by draining their Energon. The situation is made even worse when he frees Airachnid from her stasis pod and she takes control of the Insecticons.