Premieres Wednesday, Jan. 5, 2022 at 8 p.m. on KPBS TV + Sunday, Jan. 9 at 8 p.m. on KPBS 2 / On Demand. Uncover the variety of activity, both human and natural, that occurs on the slopes of active volcanoes. See the surprising number of animals that survive and thrive alongside these fiery natural phenomena.