Lina (Andrea Demetriades) works a drugs case involving undercover cop, Adam (Jason Chong), who's been living with a Vietnamese heroin gang for three years. He is shaken by his experiences and Lina fears he may be suffering from PTSD, and prove an unreliable witness. But after Tony (Peter Kowitz) opens her eyes to the real reason behind Adam's edginess, Lina's witness goes AWOL.