The decision to keep my undercover mission from you was a difficult one.

I am sending you on a sacrificial underground undercover mission.

Captain of Squad Six which is used for undercover missions.

Even Caleb might have changed; after all, he'd consented to this undercover mission.

Gimmers also thought Ben "did well on his first undercover mission too, didn't you think?

It was more like they were briefing her about her new identity before an undercover mission.

It's obvious that you're on an undercover mission to expose the financial diddlings.

Member safety: This is a set of measures taken by members who perform undercover missions in order to prevent the enemies from getting to them.

"I'll keep that in mind on my next undercover mission," he said glumly.

Looking out of place during an undercover mission of this nature would only draw attention.