Warrior School! Ratchet is carrying Buster back to his home in Portland when they stumble upon some campers. After some explanations, Ratchet learns about humans requirement to eat food and likens it to a Transformers need for fuel. The education is cut short when Buster suddenly reels back in pain, a side effect of having places two terminals connected to the head of Optimus Prime to his temples earlier, although he doesn't tell Ratchet this and is taken home by the campers, leaving Ratchet to ponder over what to do next.
