It's official. Average Rob and Arno are taking on an IRONMAN challenge with only six months of preparation. In this first episode, they promise Marten Van Riel, from their previous triathlon video, that they'll complete an Ironman. Despite being deemed by some as ambitious and others as reckless, they are committed. The IRONMAN involves a 3.8km swim, 180km cycle, and a 42km run. Luckily, they have support from Belgian Ironman champions Luc Van Lierde and Frederik Van Lierde as their coaches.

Rob and Arno realize they have a long way to go to be ready for the IRONMAN in six months. In this episode, they commit to intense training and face significant challenges. Both had dealt with injuries and mental hurdles, leaving them questioning if they would be ready in time. With guidance and support from Belgian Ironman champions Luc Van Lierde and Frederik Van Lierde, their journey continues with determination.

In this final episode, Rob and Arno achieve their goal of becoming IRONMAN athletes. They embarked on this challenging journey eight months ago, and now the moment has arrived. Despite numerous obstacles and doubts, they push through with determination and support from Luc and Frederik Van Lierde. The episode captures their emotional and triumphant finish, proving that anything is possible with dedication and perseverance.