Several months have passed as Ross gets in deeper with the French invasion force as they prepare to welcome their leader, General Toussaint. However, Ross's belief in the need for secrecy revives old insecurities and risks his friends, his marriage and his life. Meanwhile, Morwenna and Drake are ready to welcome their baby, and George stumbles on the means to undo Ross once and for all with the help of Merceron and Hanson. With their lives are on the line, Ross and his friends must launch their most daring plan yet, to save themselves and the country from enemies both at home and abroad.
Elenco: Aidan Turner , Eleanor Tomlinson , Heida Reed , Ruby Bentall , Jack Farthing , Beatie Edney , Kyle Soller , Phil Davis , Hugh Skinner , Gabriella Wilde , Henry Garrett , Luke Norris , Ellise Chappell .