In the cutthroat world of pro soccer, a club lives and dies by the stars on its under-21 team. They are the future and lifeblood of any franchise, but most will never make it. 21 Thunder is the story of the Montreal Thunder U21 team, following the team's star players on and off the field. A story of love, crime, race, sex and athletic glory, at its core the series is about how a group of players and coaches unite as family in the whirlwind of life, one step away from the pros.