Secrets of the Earth

Death Traps Quicksand, Whirlpools, Riptides (2x1)

Air date: Oct 20, 2014

Quicksand, grabbing unsuspecting victims in a mortal grip; whirlpools, the relentless swirls of water trapping entire boats in their swift vortices; rip currents, the hidden rivers of ocean water sweeping even strong swimmers beyond the waves.