<br />Welcome back to Wild West Yorkshire<br /><br />When Catherine discovers the remains of a gangland murder victim in a drained reservoir, it sparks a chain of events that unwittingly leads her straight back to Tommy Lee Royce.<br /><br />Watch #HappyValley on iPlayer from 1 Jan at 9pm<br /><br />All our TV channels and S4C are available to watch live through BBC iPlayer, although some programmes may not be available to stream online due to rights.
