Demelza gives birth. Ross welcomes old friend Dr Dwight Enys to Cornwall.

With Jim gravely ill in jail, Ross and Dwight launch a desperate mission to save him.

Francis wrongly blames Ross for helping Verity elope with Andrew Blamey.

Needing money to open a mine free of George's influence, Ross strikes a deal with a local smuggler. Dwight, meanwhile, tries to diagnose an epidemic and receives help from an anonymous benefactor.