The Night's Watch
will let you through the TUNNEL
Game of Thrones Season 5, Episode 8
And in all those centuries,
we have never sealed the TUNNEL.
Game of Thrones Season 4, Episode 7
More TUNNEL.
Breaking Bad Season 2, Episode 10
Cold, gloomy, and easily accessed by
a Frenchman through a TUNNEL.
The Big Bang Theory Season 9, Episode 8
We were digging a TUNNEL for them.
Money Heist Season 1, Episode 13