Optimus Prime asks Sam if he's related to Archibald Witwicky and introduces the Autobots (which Mikaela coins) to the humans: Jazz, Ironhide, Ratchet, and Bumblebee. Prime educates the humans on the Autobots' mission to find the All Spark, what it is, and who Megatron and the Decepticons are, along with Cybertron's war. He also lets Sam know that the All Spark's location is imprinted on Archibald's glasses and that if Megatron finds it, he will use its power to rebuild his armies. Scorponok's tail is studied and it's discovered that the Transformers are sensitive to temperature.