I always got stuck on
the first CHALLENGE--
The Big Bang Theory Season 7, Episode 3
Challenge me, kraken.
Game of Thrones Season 4, Episode 2
Ragnar said that
if you refuse his CHALLENGE,
Vikings Season 1, Episode 6
must I CHALLENGE the law?
Vikings Season 1, Episode 1
Tell Ragnar Lothbrok
I accept his CHALLENGE.
Vikings Season 1, Episode 6