Wednesday, Jan. 24, 2024 at 10 p.m. on KPBS TV / Stream now with KPBS Passport + Encores Sunday, Jan. 28 at 10 p.m. and Thursday, Feb. 1 at 8 p.m. on KPBS 2. Follow a team of experts as they solve the enduring mystery of exactly where Hannibal and his troops crossed the Alps to launch a surprise attack on Rome.