A local congressman's (Steve Landesberg) aid is sought when Harry's (Kevin Peter Hall) habitat is found destroyed. The clan petitions to save the forest. (Part 2 of 2)

The Hendersons try to close down an animal research lab by protesting after finding an escapee, a scruffy dog, on their doorstep.

Harry befriends a homeless intruder who reveals that he built the Hendersons' house. Meanwhile, the Hendersons are celebrating a birthday.

George's decision to quit his job and launch a magazine with Brett rockets the rest of the Hendersons into the job market.

Brett thinks a primitive mask can cure his ailing love life by casting a spell on Darcy's Swedish au pair Uma, and it seems to work; but his date with her is spoiled by Harry, who is strangely obsessed with the mask as well.