This episode is one of the first episodes to feature a different time line. This time in particular, we are in ancient Egypt, where Weasel and Baboon are asp exterminators, and the Red Guy is Cleopantless, Queen of DeNile.
When the Queen's pyramid is infested by asps, Cleopantless has to call upon Weasel and Baboon to help him (or her) get rid of them. All of Weasel's and Baboon's plots and traps to try and capture the asps, while humorous, prove to be worthless.
Weasel's latest plan is to use Queen Cleopantless as bait to trap all the asps inside a specially built pyramid. This plan does indeed work, but Queen Cleopantless is also trapped inside the pyramid, as Baboon forgot to build in an escape hatch.
Thousands of years later, in modern times, Weasel's and Baboon's descendants discover the pyramid and find a way inside. There they find Queen Cleopantless (now with a beard!) playing cards with the asps. A hilarious episode.