Gabriel gains access to Sanctuary and attempts to force Adam into providing a cure for his fatal condition.

A psychotic New Mutant escapes from prison and goes after Adam, seeking revenge.

A New Mutant with the ability to manipulate the minds and perceptions of others sets out to locate Sanctuary, and captures Shalimar to do so.

Shalimar's father is involevd in secretive genetic research. The team investigates and finds out that the person backing him has plans of their own.

In the aftermath of disaster, the Mutant X team must deal with the death of one of their teammates, the disappearance of another, the return of Mason Eckhart, and the arrival of a mysterious mutant with an agenda of her own.

While Brennan and Shalimar investigate a mysterious plane crash, Lexa contemplates her future with the Mutant X team.

Mutant X tracks down a rogue scientist while Shalimar breaks away from the team to help Adam save the scientist and uncover the real bad guy.

The team uncovers many of the mysteries surrounding Mutant X after the Dominion captures Lexa and Jesse.