It's the fall of 1985. The intertwining tales of three 5th grade friends, Chris, Joe and Ted, unfold in the suburban paradise of Palo Alto, as the threat of a mountain lion looms over the community.
一艘在深海被困的潜艇上突然出现一名神秘樵夫,而这艘潜艇带着不稳定的货物,已经被困在水下好几个月了。随着陷入恐惧的船员们穿过遇难船的走廊,发现自己正在接近最黑暗的恐惧的源头。