Gadget, Penny and Brain travel back in time to prevent the destruction of their family's history by MAD time travelers. While in the past, they encounter caveman versions of themselves.
This is the only one of the time travel episodes that feature a past counterpart to Penny or Brain.
S 2 : Ep 42
Aired 11/8/83
S 2 : Ep 36
Aired 10/31/83 (22:07)
S 2 : Ep 32
Aired 10/25/83 (22:07)
S 2 : Ep 30
Aired 10/21/83 (22:08)
User Score: 942
User Score: 200
User Score: 102
User Score: 68
User Score: 41
User Score: 34
User Score: 22
User Score: 18
User Score: 16
User Score: 15