Ep 7. Mr. Guinea Pig

Sea Hunt season 1 episode 7, titled "Mr. Guinea Pig," follows the adventures of professional diver Mike Nelson as he takes on a dangerous assignment for the Navy. Mike is tasked with testing a new underwater breathing apparatus, one that could potentially revolutionize the way divers operate underwater.

To get a better idea of how the equipment works, Mike enlists the help of a local scientist, who brings along his pet guinea pig as a test subject. The guinea pig is fitted with a miniature version of the breathing apparatus, and Mike is amazed at how well it performs.

Excited to try out the full-sized equipment, Mike sets off on his mission to retrieve a piece of valuable cargo from a sunken ship. However, things quickly take a turn for the worse when Mike experiences a malfunction with the apparatus, causing him to become trapped at the bottom of the ocean.

With only limited oxygen left in his tank, Mike must quickly come up with a plan to escape before it's too late. As he struggles to free himself from the wreckage, he begins to hallucinate and see visions of his past experiences underwater.

Despite the odds stacked against him, Mike manages to free himself and return to the surface safely. However, the incident leaves him shaken and questioning the safety of the new equipment. In the end, he decides that the technology is not yet ready for use and begins working with the scientists to develop a safer version.

Overall, "Mr. Guinea Pig" is a thrilling episode that showcases the risks and dangers of underwater diving while also highlighting the importance of innovation and progress in the field. With its exciting plot, stunning underwater cinematography, and strong performance from lead actor Lloyd Bridges, it's a must-see for fans of the Sea Hunt series.