The entire premise of Spinning Out relies on the fact that its leading lady, Kat, is a former singles skater who is forced to quit because of a physically and mentally traumatic injury. In the opening minutes of the first episode, we see a flashback to the day of her accident, and it's intense and a little bit graphic, with blood from her injury seen on screen without cutting away. Even though it's framed as a flashback, so we know Kat is OK, it's still a scary moment right off the bat.
Kat's isn't the only nasty accident seen almost immediately: a pairs skater sustains a terrifying injury to her foot when her partner's blade comes too close. If your child (or you) is sensitive to depictions of injury, be forewarned.