As the Boston Celtics celebrate their record 18th NBA title, the franchise's origins are traced back; Red Auerbach makes history by drafting Chuck Cooper, the NBA's first Black player; racial tensions bring a tumultuous era ahead.
At the peak of the civil rights movement, with segregation persisting in Boston, Bill Russell inserts himself into the struggle; yet the winning continues, with Russell making more history.
Against the backdrop of the controversial Boston busing mandate and racial unrest in the city, the Celtics return to glory with a pair of championships in the 1970's; the team fades before Auerbach pulls off another brilliant move.
As the Celtics and Lakers battle for basketball supremacy, Larry Bird and Magic Johnson's rivalry captivates the sports world; in 1986, Bird helps lead one of the most dominant seasons in NBA history, but an unthinkable tragedy changes everything.