Every season of Secret Mission - Undercover Agents Never Back Down! ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Secret Mission - Undercover Agents Never Back Down!!

It's for the sake of the investigation...!

Do it in the car...?!

My body feels so weak...!

It's because of the aphrodisiac...

In front of all these people...?!

I've been trapped...!

We need to escape quickly...!

Noma, I think I really...

Narcotics Enforcement Agent Riko Ikazuchi is undercover with her junior colleague Noma in an apartment that serves as the hideout for a criminal organization. Despite Riko and Noma posing as a newlywed couple, the criminals begin to suspect them after not hearing any marital intimacy during the night. To convince them that they are a loving couple, Noma starts touching Riko's body...

The Best Seasons of Secret Mission - Undercover Agents Never Back Down!

Season 1