X2 (2003 Movie)

X2 (often promoted as X2: X-Men United and internationally as X-Men 2]) is a 2003 American superhero film based on the X-Men superhero team appearing in Marvel Comics. It is the sequel to 2000's X-Men, and the second installment in the X-Men film series.

Plot
Stryker uses a mind control serum to brainwash the mutants.