The conclusion to Underwood and Flinch.

David finally gets to meet Sergei.

David, Damo and Miguel arrive at Sergei's club in Malaga, looking for trouble - and finding it.

Underwood travels to Malaga to confront Sergei at La Fantasia.

Episode 41, in which David arrives at the scene of the fire, Miguel tells tales, and Damo makes a remarkable find.

Damo and Keith struggle to escape the inferno.

Michelle and Keith - both still under Underwood's spell - await the return of their master at La Reina de Corazones. Will Underwood return for Michelle, or does fate have other plans for Mr and Mrs Mullins?

Underwood and Flinch's night out at El Chupeton - Part 2. David's story continues. Secrets, revelations, conflicts ... and gin: something's gotta give.

David tells Underwood how his mother came to be involved with Arthur and The Sect.

With Underwood's origin tale told, we return to the present day and some of the other characters in the story. At La Reina de Corazones, Keith has problems explaining himself to Melanie, while in Malaga, Lydia has an appointment to see an old friend.