Parramatta 1870s. An old black Billy Can contain the secrets of an incredible life. Rick Lockley's life is seemingly taken from his hands by his family. At seventeen he's not too keen about being told what to do so he runs away and becomes a swagman. Years pass, still heart sore he returns home, arriving wiser, engaged and broke. He has collected some valuable friends, including Jack, a jolly swagman. Rick knows little about the old man who protected him during his years on the road. He understands Jack has secrets, but Rick trusts him. The old man comes to live with Rick and his new wife, and some of his story unfolds. On his death Jack leaves Rick, his precious Billy Can, the contents reveal Jack's identity. Stunned, Rick finds he must travel to England to finalise Jack's wishes. There he uncovers Jack's life of love, betrayal and a link to his own family. Rick finds there is much more to learn about this enigmatic man.