Reluctantly, he agrees to teach the group, consisting of Wyatt, Leticia, Raymond, Ricky, and brothers Alex and Sean, until he can work out an MMA comeback.
At first, the kids are reluctant to learn from Jimmy and each of them is dealing with issues of their own, including poverty, bullying, desire for approval, and parental loss.
As the team begins to train hard, Jimmy brings in a new member, the very quiet yet violent-prone Rasheed, whose mother wants him to learn martial arts for self-discipline.
As they prepare for the showdown, Alex and Sean's aunt Valerie decides to teach the Underdogs ballet to help them with their balance and rhythm.
However, several Scorpion members discover the Underdogs at dance school and secretly videotape the class and post the footage to YouTube.
Rasheed then fights with several of the teasers and gets suspended, but Jimmy visits him at home and after a talk, the two realize they have much in common and come to a mutual understanding.
[2] Rhee was quoted as saying that "By working with an award winning producing and directing partner Doug Magallon and Fabienne Wen, we were able to make 'Underdog Kids' into one of those special films that will touch your heart and uplift your spirits", and that the main reason why the film was made was to "inspire families with stories of courage, friendship, love and honor" and the teach people to "never give up".
Simon Rhee, Phillip's brother served as the stunt consultant and James Lew was the 2nd unit director/stunt coordinator and Marc Canonizado was the choreographer on the film.