Underwater Invasion

시즌 1, 에피소드 2: Dr. David Lodge examines the infestations spreading throughout our fresh and salt water systems and clogging our precious waterways. The lionfish invasion is one of the worst marine disasters to ever hit the Eastern seaboard. In Africa, Lake Victoria's vital fishing industry is in danger of collapse and dead zones are on the rise due to a tiny microscopic creatures known as Red Tide.