Freewheeling wanderer Jerry Day and his beautiful wife Toni are at odds over their lifestyle. Jerry can't accept responsibility, but Toni yearns for a family and a settled life. Then the Days 'rediscover' Jerry's young daughter Pennie, who has been living with his rich deceased wife's family. Pennie appears to be just what Jerry needs to mend his swindling ways and lead a straight life. Then a corruptible influence enters his life.

The murder of her father sends a teenage tomboy on a mission of 'justice', which involves avenging her father's death. She recruits a tough old marshal, 'Rooster' Cogburn because he has 'true grit', and a reputation of getting the job done.