Following his fall, Martin is found to have detached retinas. He is also hiding an injured man. Diana tries to help Jack find his grandson and Joyce receives bad news about John. Finch tries to keep his contraband deals from Mrs Gulliver (Carolyn Pickles). Bea becomes friends with Salvatore Zappulo (Cesare Taurasi), an Italian POW, while Connie flirts with piano player, Henry (Liam Garrigan).