The Jonas Brothers fans will get to see a whole new side to Nick Jonas in the first trailer for his upcoming TV series Kingdom, formerly known as Navy St., which debuts October 8 at 9 PM ET on DirecTV.

Kingdom follows former mixed martial arts legend Alvey Kunna (Frank Grillo), who now owns a gym in Venice, California. Nick Jonas portrays Alvey's son Nate, with Jonathan Tucker portraying his big brother Jay. Matt Lauria also stars as a world-class athlete who lost everything, with the cast rounded out by Kiele Sanchez and Joanna Going as Alvey's girlfriend and ex-wife. Take a look at the first footage from this new series, then read on for more information.

Kingdom is a gritty family drama set against the backdrop of a mixed martial arts (MMA) gym based in Venice, California. It deals with survival, ambition, self-destruction and love in all of its messy iterations. The 10-episode series was created by Byron Balasco (Detroit 1-8-7).