Being Human: Old Dogs, New Tricks

"Old Dogs, New Tricks" is the first episode of season four of the US version of the supernatural drama series Being Human and the thirty-ninth episode of the series overall. It was directed by Stefan Pleszczynski and written by Anna Fricke. It first aired on Syfy on Monday, January 13th, 2014 at 9:00 pm. In this episode, everything hits the fan. Donna Gilchrist is dead, but her ghost lives on and she is even more powerful than Sally. Kat Neely discovers Sally's corpse, forcing Aidan to make a veritable deal with the devil. Kenny mutates into a hideous abomination with an insatiable bloodlust and the gang is brought together for a final showdown withe revenge-driven werewolf Liam McLean.