Summary
While powerful currents threaten Alex and Tony's dangerous dive in the Northern Atlantic, Rick and Marty investigate a mysterious earthen anomaly.
Guest stars
Aaron Taylor,
Brennan McMahon,
Charles Barkhouse,
Dan Henskee,
Doug Crowell,
Gary Drayton,
Laird Niven,
Liz Michels,
Noah Currie,
Steve Guptill,
Terry Matheson,
Tony Sampson