
Take the ski mask off.
I feel like I'm talking to the
Weather Underground here.
Breaking Bad Season 2, Episode 8

Call the UNDERGROUND unit!
Money Heist Season 3, Episode 8

bring in the UNDERGROUND teams
Money Heist Season 3, Episode 5

And the report from the Underground Unit.
Where is that report, hum?
Money Heist Season 1, Episode 8

even in the UNDERGROUND ventilation ducts.
Money Heist Season 1, Episode 11