Three lifelong 40-year-old friends go on a huge Interrail tour to honor their recently deceased friend. Three lifelong 40-year-old friends go on a huge Interrail tour to honor their recently deceased friend. Three lifelong 40-year-old friends go on a huge Interrail tour to honor their recently deceased friend. Three lifelong 40-year-old friends go on a huge Interrail tour to honor their recently deceased friend.