Convinced they'd be better off raising themselves, the Willoughby children hatch a sneaky plan to send their selfish parents on vacation. The siblings then embark on their own high-flying adventure to find the true meaning of family.

Monco is a bounty killer chasing El Indio and his gang. During his hunting, he meets Col. Douglas Mortimer, another bounty killer, and they decide to make a partnership, chase the bad guys together and split the reward. During their enterprise, there will be lots of bullets and funny situations. In the end, one of the bounty hunters shows the real intention of his hunting.