Jeb Grissom is a 65yr old Vietnam vet living on a ranch in Montana. He suffered many tragedies in his life including PTSD, the loss of his wife and later, the loss of his only son. He is an aging alcoholic drowning in self-pity when a boy, claiming to be his grandson, shows up with spiked rainbow hair asking for help. Their story is action-packed as they battle endless bounty hunters.