Laid-back veteran detective Doug teams up with rookie recruit Kirill, who's eager to work but not very good at his job! When they team up, the best (and worst) partners, the double Deckers, are born!

Doug and Kirill meet suddenly, and say goodbye suddenly too. The day after being assigned to SEVEN-O, Kirill is told he's going to be fired.

Kirill's biggest problem these days is that he's not getting any closer to his partner. Then he, Doug, and Kay are sent on a new undercover mission.

Doug's partner is back! He was never dead in the first place! It was all Kirill's misunderstanding! How can Kirill compete for Doug's heart with somebody who's so much closer to him? Oh no, wait. He retired.

A brutal murderer is to be put to death for his crimes. But before he dies, he has information that could help put the leaders of Esperanza behind bars...

A murderer is sentenced to death, but before he dies, he offers to give critical information on Esperanza in exchanged for a commuted sentence. But is there more to his deal than there seems? And how will they protect him from Esperanza's assassins?