Barnaby Walker decides he's the man to sort out his family's cash-strapped antique business when a mysterious accident lands his dad in the hospital. But when he unintentionally shells out a fortune for a treasure looted from Syria, it sets off a string of events that turn his quiet life upside down.

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.

Concerned for her family's safety, Nina moves the Morales clan into the Walker home while Barnaby and she try to work out how best to get their money back. Barnaby's convinced that his dad had no idea he was dealing with blood antiquities, but before long more than a few secrets about Nigel will emerge, forcing Barnaby to reevaluate his position.

In order to ensure the safety of their kidnapped mothers, it's paramount that Barnaby, Leah, and Nina get their hands on half a million pounds and pay the ransom as soon as possible. Barnaby has a plan, but Leah seems to be working to her own agenda. Nigel, meanwhile, decides he needs to put some distance between himself and the mess he's created.

Dissuaded reluctantly from pursuing revenge, Angel travels to England to complete on the deal his father brokered with Nigel Walker. Little does he realize how close he is to Nina, the very woman whose blood he wants to spill in retaliation for his brother's murder.

Shell-shocked, Barnaby and Leah find themselves on a flight to Mexico to give the cartel what they were promised - once and for all. Nina comes along too, and her presence immediately causes tensions between Angel - who wants her dead - and Alejandro, who is more concerned about the cartel's business prospects than its reputation.