is a biographical survival drama directed by Greg McLean and starring Daniel Radcliffe . Based on the incredible true story of Israeli adventurer Yossi Ghinsberg , the film captures his harrowing three-week struggle for survival after being stranded alone in the Bolivian Amazon in 1981.

Yossi and Kevin attempt to return via a self-built raft, but a violent rafting accident separates them, leaving Yossi alone in the wild.

Internal tensions and physical injuries—specifically Marcus's severe foot infection—cause the group to split.