When Jane Holman is driving with her two sons, Tom and Gunny, she accidentally runs into a drifter, named Jack McCloud, who breaks his leg. Feeling sorry for him, Jane invites Jack and his dog Betty Jane to stay at her house until his leg has healed. After having some difficulties to adapt to this new lifestyle, Jack soon finds himself loved by the family and they all want him to stay. When he starts teaching baseball to Tom, who misses his father who's missing in the Korean War, the two of them develop a strong bond. Meanwhile, Gunny believes that there's more to Jack and Betty Jane than meets the eye, and he's determined to find out.