In 1928, a gutsy Chicago cop helps a retired, tough U.S. Marshal track down a group of Chicago gangsters, who just killed the Marshal's family and are fleeing to Canada, through Montana. In 1925, Daniel is a retired U.S. Marshal, living in a small and remote Montana town. He has given up the dangerous life of catching desperados and now spends his time with his son, Delmar, daughter-in-law, Melissa, and his grandson, Tommy. Melissa is the bank manager of the small town, with Delmar being the Sheriff. One day, Chicago mobster, Carmine, and his gang pass through the small town, on their to Canada. They rob the bank, killing Delmar, Melissa, and Tommy in a violent gun battle. The gangsters then start their flight to Canada, using a flowing river. As they run the river, their canoe capsizes and ends up meeting Daniel, who lives in a small cabin, next to the river. After unknowingly saving the lives of the people, who just killed his family, Daniel is beaten, with his cabin set on fire, with Daniel inside. As the gang continues down the river, Seth, a Chicago Police Officer, who has been chasing Carmine and his gang, happens upon the small cabin, where he saves Daniel. Seth tells Daniel that the gang robbed the local bank and killed some people, including the Sheriff, without Seth knowing that the Sheriff is Daniel's. Daniel is beyond belief and takes just a minute to grieve. He then straps on his six guns and starts to pursue Carmine, in the name of vengeance and...justice. Seth joins Bruce, as they hunt down Carmine. As the hunted and the hunter travel through the scenic wilderness, they discover that a band of dangerous Native-Americans have escaped from prison and are taking scalps, as well as having an old score to settle with Daniel.