In April 2023, Tristan Lombart embarks on the adventure of Desertus Bikus, a 1400-kilometer ultra cycling race. The challenge is to connect Bayonne to Nerja (southern Spain) as quickly as possible, without assistance, passing through Spanish deserts and national parks. Tristan, who has been an passionate cyclist since he was 10 years old, is embarking on his first ultra-distance challenge.His goal is to cross the finish line in less than 5 days and rank among the top 50 competitors. Far from the cliches of elite athletes, follow an authentic sports adventure that will push Tristan beyond his mental and physical limits.