Hetty, on the run in London, is shocked to discover an old friend in the workhouse. Back at Calendar Hall, the gang have a plan to prove Hetty is innocent and that Ambrose is the real thief.

Hetty and the gang race back to Calendar Hall to stop Ambrose before anyone gets hurt, and to discover the truth about what really happened at the house.

Hetty is amazed to get some very unexpected help as she writes her life story and looks back on her her experience as a Foundling and a servant.