Elite athletes take on a series of grueling tests to vie for the title of "Fittest on Earth." Follow the drama as they endure the unknown and unknowable during four of the most intense days of competition in CrossFit Games history.

In 2019 the CrossFit Games consisted of dramatic changes to the season, and final competition. Can the top male and female athletes find their way in this new format to be crowned, the Fittest on Earth?

Four young offenders and their care workers visit the remote Yorkshire village of Mortlake, which prides on keeping itself to itself. A minor incident with locals rapidly escalates into a blood-soaked, deliriously warped nightmare.