Episode 4.24 (25): Good Genes, part 2 Original Air Date: April 8, 2006 Written by Christopher Yost Previously on TMNT: Searching for leads on how to cure the mutated Donatello, the turtles and Leatherhead make their way to Area 51, homebase of the Earth Protection Agent Bishop. There, they reach an agreement: the turtles will retrieve and return to Bishop a high-tech amulet currently held by the Foot, in exchange for a cure for Donny. However, there are two things the turtles don't know: one, that Bishop doesn't have an anti-virus, and two, that the only reason Bishop even knows about the amulet is because he was told about it by a seemingly omniscient entity...and those are never good. This week, on TMNT: The Turtles infiltrate the Foot's latest headquarters. You'd think that by now, the Foot would have learned to save themselves the trouble of defending the thing and to just let the turtles in. Random note: You know, I was thinking that the only similarity between the Heart of Tengu and the Sword of Tengu was their names, at least until I remembered: the only reason Splinter could defeat the Mystics was because he was using the Sword of Tengu. So now I'm thinking that the thing that made the Sword of Tengu so effective against the Mystics is the same thing that allows the Heart of Tengu to control them--meaning that the similarity in names is very much intentional.