Brian is a 16-year-old living in Oklahoma. Though he has tried out for the school basketball team, the Eagles, he has never made it, resigned to being water boy for the team. While practicing at home, Brian's sister makes a video of him injuring himself. She shows the video around school, and it is eventually seen by Connor, the star player of the basketball team. Brian takes a liking to Isabelle, a new girl at school, but is embarrassed when Connor shows the video of him to the whole school. In order to cheer him up, Brian's dad takes him to a Thunder game against the Detroit Pistons at Chesapeake Energy Arena in Oklahoma City.
At halftime, Brian is chosen to shoot a half-court shot which he misses and hits Rumble, the mascot in the process. Later on, he meets Kevin Durant and expresses his desire to play just like him. When Durant signs the special edition Oklahoma City Thunder basketball that Brian got to shoot the half-court shot with, a surge of energy causes Durant's talent to transfer to Brian when he hands it over. The Thunder lose the game, with Durant shooting 0-13 in the 2nd half.
The next morning, Brian learns that Connor, who was at the game, recorded him missing the half-court shot and posted it online. Later that night he goes out to a carnival and sees Connor fail to hit shots to win a prize for the new girl, Isabelle. Connor challenges him to "do better", which Brian is able to do, winning a prize which he then gives to Isabelle. Meanwhile, Durant's performance declines at practices, but insists he's only in a slump.