The second episode of Stone Series 2, a BBC Radio 4 detective series created and written by Danny Brocklehurst, starring Hugo Speer as "Stone". Collateral Damage was originally broadcast in the Afternoon Play slot on 6 October 2010.

In Collateral Damage, DCI John Stone is forced to open up an investigation into the death of Gary Taylor, a veteran of the Iraq War suffering from Post Traumatic Stress Disorder. The theory that he died from a self-inflicted drug overdose is turned on its head when one of his ex-army mates accuses Gary's grieving widow of having murdered him.

Starring Hugo Speer as John Stone, Craig Cheetham as Tanner and Deborah McAndrew as Sue. Also featured in the cast are Paul Oldham, Becky Hindley, Suranne Jones, Johann Myers, Andrew Westfield and Vivienne Harvey. Directed by Nadia Molinari.