Season 4 Episode
- Season 4 Episode 1
- Season 4 Episode 2
- Season 4 Episode 3
- Season 4 Episode 4
- Season 4 Episode 5
- Season 4 Episode 6
- Season 4 Episode 7
- Season 4 Episode 8
- Season 4 Episode 9
- Season 4 Episode 10
- Season 4 Episode 11
- Season 4 Episode 12
- Season 4 Episode 13
- Season 4 Episode 14
- Season 4 Episode 15
- Season 4 Episode 16
- Season 4 Episode 17
- Season 4 Episode 18
- Season 4 Episode 19
- Season 4 Episode 20
- Season 4 Episode 21
- Season 4 Episode 22
- Season 4 Episode 23
- Season 4 Episode 24
Lab Rats - Season 4 Episode 9 Spider Island
8.10 22 minutes Chase and Douglas reanimate a prehistoric sea spider. It escapes and bites Adam, which poisons him. It then grows and becomes 50 feet long due to growth hormones that had been given to it by Douglas. Everyone tries to stop the spider so they can create a cure for Adam.
