Allie's relationship with Nick begins to heat up, especially after he suggests a commitment between them. Then things take a turn when Allie, Nick and the rest of the team must cooperated with the Coast Guard to rescue two people trapped on a disabled submarine 200 feet on the ocean floor. Unable to raise the mini-sub and with the air supply in the chamber running out, Nick risks his life by staying on the ocean floor trying to hook up his own air tank into the sub despite increasing odds. When Nick, then shoots to the surface, he gets the bends from not decompressing and later dies which devastates Allie to a point of depression.
—Anonymous