Rob Kardashian has struggled a great deal recently, gaining a reported 100 pounds in a single year, and battling depression.

However, Rob is ready to put the past behind him and look forward to new projects, and that means a huge weight loss and a return to 'Keeping Up With the Kardashians,' the reality series on which he has not appeared as a regular since 2012.

The 28-year-old reality star is under the watchful eye of celebrity trainer Gunnar Peterson and according to US Weekly is already beginning to see good results.

An insider told the publication: "[He's] already lost more than 15 pounds. Rob has been sticking to the plan Gunnar [Peterson] created for him, and is getting meal delivery from a chef."

Rob has been super elusive for the past couple of years, especially when taking into account the very public lifestyle of his family, not having made public appearances since the 2014 wedding of his sister, Kim Kardashian and her now-husband, Kanye West, when Rob infamously fled Italy and ultimately did not attend the nuptials.

Last month Kim Kardashian revealed that she had been on a hike with her brother.

As it turns out, Kanye West has been instrumental in both Rob's weight loss and his repaired relationship with the rest of the family.

"It's Kanye working his magic,' a source told Us Weekly. "He's been a great motivator for Rob."

"He told Rob how he got into shape after his accident and at a time when he was down in his life."

Now, it seems as though Rob is ready to step back into the limelight and it’s in large part about money. “He’s not getting paid if he doesn’t film,” another source said. Not only has Rob already begun to film for the 11th season of KUWTK, but “he has a $2 million-a-year contract. He realized he couldn’t give up this huge opportunity.”