Indians threaten to use a bomb if they don't get all of their land back. Smart then goes into their camp and foils their plan.

While on his three-week vacation Agent 43 is confronted by a group of rebel Indians. They demand the return of all Indian lands or they will fire their secret weapon on Washington. Max calls an all-out alert, though we're not sure if it's because of an Indian attack or because he doesn't get three weeks vacation. Once saturation bombing of Arizona is discarded as a plan, Max and 99 mount 'em up and head out to disarm the secret weapon. Max, disguised as a Papawahsee, infiltrates the camp. The Papwahsee is actually the Indian word for fiancee and Max is forced to romance Chief Red Cloud's daughter to fulfill his assignment. A jealous 99 raids the camp to prevent Max from kissing the daughter and tries to prevent the Indians from launching their secret weapon, a giant arrow.