Ben 10 vs. The Negative 10: Part 1
- Episode aired Nov 3, 2007
- TV-Y7
- 22m
The Tennysons investigate the theft of Plumber technology seemingly committed by foes from Ben's past.The Tennysons investigate the theft of Plumber technology seemingly committed by foes from Ben's past.The Tennysons investigate the theft of Plumber technology seemingly committed by foes from Ben's past.