Two rare deep-sea oarfish known as "doomsday fish" washed up on a Cabo San Lucas beach, sparking fears about earthquake legends and leaving witnesses stunned.

A specialist rescue team stepped in to save roach, perch, gudgeon, bream, ruffe and even critically endangered European eels.

In the deep blue waters far from land, survival turns into a high-stakes hunt. Diving beneath the surface, the crew targets ...