Generation X was a team of mutant teens formed shortly after the Phalanxattempted to absorb all mutants, starting with the next generation of mutants. The team was led by both Banshee and Emma Frost, and was comprised mainly of Jubilee, Husk, Synch, M, Chamber, Skin, and the mysterious Penance. The team's primary purpose was to receive an education and learn to be the next generation of X-Men, rather than fighting supervillians. The school was located at the Massachusetts branch of Xavier's School.

Both Banshee and Emma Frost educated the teenagers in school subjects as well as combat and field skills. Jubilee and the other mutant teens honed their unique abilities and occasionally battled minions such as the Juggernaut, Omega Red, and their arch-rival Emplate.