Giant-Size X-Men #3

When Xavier tracks down Lucifer in Bavaria, he discovers the villain’s heartbeat is tied to a massive thermal bomb—destroying him would mean global catastrophe. The X-Men arrive just as the Avengers, also on the scene, prepare to strike. With time running out, Xavier must convince both teams to stand down, trusting the X-Men to stop the bomb without killing Lucifer. Cyclops ultimately uses his optic blast to disable the device, but the real test is whether the two teams can trust each other long enough to survive the crisis.

In "We Have to Fight the X-Men!", a twisted game of manipulation begins when Puppet Master constructs a lifelike model of Professor X and forces him to order the X-Men against the Fantastic Four. When Xavier breaks free from the control, the Mad Thinker unleashes his Android to finish what the deception started—leaving both teams caught in a deadly crossfire.

When Banshee calls the X-Men to confront a mysterious spider creature, the young mutants’ first encounter with Spider-Man leads to a shocking misunderstanding—mistaking the web-slinger for the very threat they’re hunting. A tense clash unfolds as trust is tested and identities blur in the heat of the moment.