Revenge of the Tiger

Whatever you do... don't trust the tiger. He's sneaky! The tiger's been gone for ten gazillion years, which is great news for T-Rab. He successfully defended his territory from the enemy. Yes! Wait a minute! How'd that tiger get back in the classroom? And why are the students so happy to see him? Don't they know he's up to no good, plotting against their beloved Tyrabbisaurus Rex? It's a good thing T-Rab's got a plan to save them ... and himself ... and the world from that dastardly spy of ...