Concerned for the safety of her family Nina moves them in with the Walkers. Barnaby is left floundering as more of Nigel's secrets are revealed. The police inch closer to the criminals that left Smith dead.

Barnaby and Nina need to escape Mexico. But with a price on their heads, the only way is to pose as man and wife. What could go wrong?

Barnaby has been taken prisoner by Colin McQueen, who is also looking for the Hitler painting. Nina and Leah will have to work together to find the picture and free Barnaby while trying to keep the Sherman Twins' bounty hunter at bay.

The statues vanish, leaving Barnaby, Nina and Leah in yet another tight spot. And, as if things couldn't get much worse, Angel shows up in England, too.

Backed into a corner by Angel, Barnaby and co must embark upon a risky mission to enter the Shermans' super-secure mansion and steal back the statues by force.

Barnaby and Nina urgently need £500,000 to save their kidnapped mothers, while Nigel uses his power to find a way to distance himself from the mess he has created in London