Matt Brown Quits 'Alaskan Bush People' After Blowout Fight With Dad Billy

Matt Brown has quit his family's hit Discovery Channel reality show Alaskan Bush People, RadarOnline.com can exclusively reveal.

According to a source, the 36-year-old got into another nasty brawl with father Billy Brown over his ongoing battle with addition and, since then, has been shacked up with his new 48-year-old girlfriend in California!

As fans know, Matt did not appear in most of season 9 of Alaskan Bush People after checking into rehab for a third time, which was documented at the end of season 8. After ditching rehab and jetting off to Southern California, where Matt went MIA in the desert near Palm Springs, Billy told his troubled son that if he doesn't get help the show contract will end!

Matt checked into Betty Ford Clinic and has allegedly been sober since — sharing videos with fans on YouTube to update them on his progress.

And although Matt lived up to his word, Billy apparently did not!

"Billy knows how much Matt needed to work and relied on the family's show for income, just as the rest of his siblings did, and Billy still cut him out," the source told RadarOnline.com.

"Matt wants nothing to do with his dad and is feels like they are all brainwashed by him. It is really sad because Matt is doing well, finally, which is all that Billy says he wanted from him."

"What's even worse is that Matt's brothers and sisters are siding with Billy because they are all just as money hungry as their dad."

Alaskan Bush People is set to return for season 10 with all other remaining cast members, as RadarOnline.com was the first to report.