Underdog

Season 3 Episode 13: The Marbleheads, Part 1

A strange object crash-lands on earth. A group of scientists check out the mysterious object, determining that it's a harmless, dead comet. The scientists leave the scene unaware of the fact that a secret door opens from the center of this strange thing and two evil looking space aliens emerge from this strange object.

Genre:

Animation , Comedy

Seasons:

3

Episodes:

129

Actor:

Wally Cox , Sandy Becker , Kenny Delmar

Quality:

HD

Status:

Ended

First Air:

1964

IMDb:

6.4