
Their identity is yet UNKNOWN.
Money Heist Season 1, Episode 12

with an UNKNOWN virus!
Money Heist Season 3, Episode 4

...as a wild adventure to UNKNOWN lands
or staying at home with a good book?
The Big Bang Theory Season 2, Episode 3

SUSPECT'S WHEREABOUTS UNKNOWN
Money Heist Season 1, Episode 1

whose UNKNOWN provenance
jeopardizes
The Big Bang Theory Season 5, Episode 2