Desc: Joachim Rønneberg - den siste sabotøren: Directed by Frode Berg. With Joachim Rønneberg, Brede Røsjø. In February 1943, Joachim Rønneberg was only 23 years old when he was chosen to lead the commandos who were supposed to prevent Nazi Germans' attempt from creating an atomic bomb. The action against the heavy water factory at Vemork was carried out in such an impressive manner that it is still on the syllabus for today's special forces. In 2014, the 95-year-old Rønneberg was the last Norwegian saboteur, telling us how he experienced the dramatic action.