Hindsight (3) - S1.E3

The X-Mansion is being rebuilt with the help of Forge and the money of Angel. Emma Frost shows up and asks to help by using Cerebro to locate Professor Xavier. She succeeds: a comatose Xavier is in Genosha being taken care by Magneto. Back to the mansion the X-Men receive a telepathic message from Xavier from 20 years in the future. He tells them that the Sentinels have destroyed the world and asks Wolverine to lead the X-Men and avoid this "future" to come to happen.