Plot[]
Bugs pops out in Golden Gate Park and encounters a man, who asks Bugs to hold his balloons while he ties his shoelaces. Bugs complies, but soon finds himself lifted in the air by the balloons and drifting off into the ocean. Eventually he clashes in midair with a stork delivering a kangaroo joey, leading to Bugs getting switched with the joey, brought to Australia, and dropped into a kangaroo's arms. Bugs refuses to be the kangaroo's baby, but feels guilty after the kangaroo starts crying and agrees to be its 'baby'.
After a wild ride inside the kangaroo's pouch, Bugs gets out and is then struck by a boomerang thrown by an aborigine, whom Bugs later calls "Nature Boy". Bugs throws the boomerang away but it hits him again. Nature Boy confronts Bugs, who teases him into a yelling fit. Nature Boy throws his spear at Bugs, who runs and dives into a rabbit hole. Bugs tricks Nature Boy into thinking he's stabbing the rabbit down the hole, then kicks the man down into the hole.
Later Nature Boy spies Bugs walking and attempts to shoot a poisonous fruit at him, but Bugs blows through his bamboo blowgun, causing the man to ingest the fruit instead. Nature Boy then chases Bugs, who gets into the front of a canoe and rows off. He soon realizes Nature Boy is in the back of the same canoe and then they row into a tunnel. A moment later they come out another tunnel in each other's arms. The tunnel has a sign identifying it as a "Tunnel of Love" like from an old amusement park or carnival. Bugs says, "Gosh, Nature, I didn't know you cared." Nature Boy flies into a rage and chases Bugs up a cliff where the two of them fight in the kangaroo's pouch. Finally, Bugs kicks Nature Boy out and the kangaroo kicks him off of the cliff. Then, the joey floats down from the sky into his mother's pouch. The kangaroo gives Bugs a ride back to the US, using an outboard motor to power the kangaroo across the sea.