When Cody stumbles upon his uncle Darius supplying weapons to the Triceratons he alerts the Turtles and the Peace Keepers. But when they arrive at O'Neil Tech the room has inexplicably filled with plants instead of weapons. Now that Cody no longer believes his uncle is innocent Darius arranges to take out his 'dear' nephew and the Turtles, with a little help from the Dark Turtles.
This episode provides examples of
- Arms Dealer: Darius Dun, for the Triceratons
- Look Behind You: Subverted when Leo does this to Dark Don, and the other refuses to fall for that trick. Needless to say, he should have looked
- Meaningful Echo: Leo's lesson for Cody at the start of the episode becomes very important when Cody's fighting Darius
- Powered Armor: Darius Dun's battle suit
- Wham Episode: Dunn's true nature is revealed to Cody, who is able to kick him out of O'Neil Tech, and is forced to become the new CEO himself.
- Would Hurt a Child: Darius wants to take over O'Neil Tech so badly that he's prepared to eliminate his own nephew to get it
- You Are Not Alone: when Cody laments that without his uncle he's all alone now, Leo assures him that he's never alone while the Turtles are around