Helen是曼城一位女警官，意外发现自己怀孕，面对老公的欣喜，她好像隐藏了难以言说的苦衷。因为一桩少女绑架谋杀案，Helen回到故乡调查，而疑犯的妻子恰是她的儿时玩伴，多年以前的秘密渐渐浮出水面……

Bulletprooffollowstwomeijubar.netcops,BishopandPike,astheychasedownhardenedcriminalsinLondon’sEastEnd.OnthesurfaceBishopandPikehavealotincommontheyarecool,smart,unapologeticallystreet-wiseandtough;theyshareadeep,fraternalrelationship-andarealwaysthereforeachother.However,theycomefromverydifferentbackgroundsandtheirpersonalmotivationsandemotionallivesoutsidethepoliceforcedifferasaresult:Pikeisanaspirationalfamilyman,thesonofadecoratedpoliceofficerwho’sdeterminedtofollowinhisfather’sfootsteps,butnotbeinhisshadow.Bishopgrewupincarehomesandonthestreets,andneverknewhisfather.DespitethesedifferencesBishopandPikearebondedbythesamemoralcodeandworkbrilliantlywelltogetherevenwhenthechemistrybetweenthemlookssettoexplode.

经过一整年惊险刺激的卧底行动后，Bishop和Pike终于迎来了久违的假期。谁料他们在南非度假时，遇上了一起儿童绑架案，这对警察搭档决定与当地警局合作救人。