室友Rhona（Zoe Boyle）和Leanne（Kerry Howard）目睹了一起吓人的黑帮枪击案，她们的生活从此陷入混乱……她们被迫进入证人保护程序，但以新身份生活并不是一件简单的事。Leanne决定抓住这个机会实现「放纵生活」的梦想，而Rhona则处处谨慎……她连最基本的谎话都说不出来。与此同时，黑帮组织的两名年轻成员发誓要找到她们，两个女孩的麻烦越来越多……

In a South Yorkshire city, Ryan Sinclair, Yasmin Khan and Graham O'Brien are about to have their lives changed forever, as a mysterious woman, unable to remember her own name, falls from the night sky. Can they believe a word she says? And can she help solve the strange events taking place across the city?

A long-buried WWII bomb found in central London sparks a mass evacuation, providing the perfect cover for a bank heist.