Disc.History+1 Legend Of Xanadu. Archaeologists use cutting-edge aerial imaging to investigate new discoveries and the truth behind the mythical lost city of Xanadu. S5, Ep20 2026-06-11 A Robot's Guide To Mars. A team of robot sleuths roaming Mars on a mission to uncover its secrets. Now, Perseverance joins them to find out if there was ever life on the red planet. S10, Ep8 2026-06-11 The Earth Next Door. Astronomers detect a potentially habitable planet tantalizingly close to Earth. A chance discovery at NASA reveals a top secret military space program. S3, Ep4 2026-06-11 Night Stalkers. An extra-terrestrial stalker leaves a family frozen in fear outside of Juneau, Alaska. A maritime monster nearly capsizes an aircraft on Alaska's famed Lake Iliamna. S1, Ep4 2026-06-11 Chasing The Fortune Of Sir Francis Drake. Josh searches land and sea for Sir Francis Drake's lost fortune. He hunts for a lost cache of Spanish gold and the remains of Drake himself. S5, Ep10 2026-06-11 The Amazon's Cursed Ruins. The team explores an abandoned outpost in the Amazon rainforest. After meeting with tribes in the jungle, they hear strange things at night. S1, Ep7 2026-06-12