Ben, Gwen, and Max must stop an extraterrestrial who plans to open a gateway that leads to an alien invasion.
Ben Tennyson
Eon
Gwen Tennyson
Sandra Tennyson
Carl Tennyson
Old Man
Mrs. Dalton
Principal White
Grandpa Max Tennyson
Cash
T-J
Stephanie
Heatblast (voice)
Grey Matter (voice)
Diamondhead (voice)
Wildmutt (voice)
Talent Show Teacher
February 11, 2008
Ben Tennyson
Eon
Gwen Tennyson
Sandra Tennyson
Carl Tennyson
Old Man
Mrs. Dalton
Principal White
Grandpa Max Tennyson
Cash
T-J
Stephanie
Heatblast (voice)
Grey Matter (voice)
Diamondhead (voice)
Wildmutt (voice)
Talent Show Teacher
