On the Tuesday night (Feb. 2) episode of A&E's groundbreaking reality TV series "Fit to Fat to Fit," personal trainer Adonis attempts to put himself into his client's shoes by packing on the pounds in order to lose weight together with his client Alyssa - and even puts his health on the line in the process. In a new sneak peek for tonight's episode, Adonis brings Alyssa to a graveyard for an outdoor work out session in order to explain how serious this weight loss journey is for both of them.

"So we are in this cemetery because I need Alyssa to know with my weight gain journey, my health actually was at risk," Adonis says in his on-camera interview.

"I sacrificed a lot to gain the weight," he tells Alyssa, "I put my life in danger."

But Adonis joins Alyssa on her workout session in the graveyard. He does jumping jacks as Alyssa runs up a hill, and they stand side-by-side as they do a set of alternating squats with punches together.

"I'm going to do this work out with her, she needs to know like we're in this together," Adonis tells the cameras. "I'm out of shape as well, I can feel it."

"You better pick up the pace," Alyssa cheers out to Adonis when it's his turn to run up the hill.

"It was like we worked with each other," Alyssa says in her on camera interview of her work out with Adonis.

"Now there's somebody with her and can feel her pain," Adonis says.

"You know what motivates me?" Adonis asks as he gives Alyssa a high-five at the end of their work out. "Watching you."

Watch the full sneak peek below and be sure to catch tonight's episode of "Fit to Fat to Fit," airing at 10 p.m. on A&E.