Some mild but nothing explicit.

Some shots of the dancers can be seen having their accidents but nothing remotely violent or gory things are shown.

Some Swedish swears can come, when dancers becomes angry at the judges they give the middle finger (uncensored).

At one point the song "F*** You" by Cee Lo Green has been heard one time (especially the original and uncensored version).

None.

Nothing remotely scary happens in this show.