A crucial supply box is stranded in the middle of a freezing lake, but only one survivalist can claim it in time; the families must guide their survivalists to crates filled with supplies using only a compass.

The four remaining survivalists and their families at HQ go head-to-head; the survivalists must correctly guess a five-letter word chosen by their family at HQ to open the final supply drop; the survivalists must decipher a Morse code puzzle.