Davina McCall's ITV1 weight loss reality show featured a treasure hunt-style immunity challenge this week and also an intense fitness session in which host McCall took part.
Irish hopeful Damien, 21, only lost 6lbs across the week. After incurring a 1lb penalty for his failure in the immunity task, his overall percentage weight loss was 1.51%.
Rival Sarah Jane Partridge had a weaker performance, only shedding 1.15%, but in the final plea for survival, she persuaded the remaining contestants to save her.
Damien was told that his "heart was not in it" by his rivals and that he hadn't put "the effort in" at the gym.
Speaking afterwards, Damien insisted that his experience on the show had been a positive one and that he wouldn't give up on his dream to cut down his weight.
He said: "This has spurred me on so much. With the knowledge I've gained here, there's going to be no holding me back. I'm not going to be the same person when you see me again."
The Biggest Loser UK continues on Tuesday nights at 9pm on ITV1.
> Davina McCall takes part in Biggest Loser training session - picture