After two men vanish from a remote lake in Malaysia, Jeremy Wade sets out to track down the possible culprit. A trail of evidence leads Jeremy into an ancient rainforest, where an old adversary lies in wait.

In this special episode, Jeremy reveals brand-new personal insights and untold stories behind the most epic and challenging adventures of his River Monsters career.

Paul Watson is captain of Sea Shepherd, a radical environmental group made up of self-proclaimed eco-pirates who fight for marine conservation. Their mission is to stop Japanese fishing vessels from killing whales in Antarctica.

Sea Shepherds finally spot a Japanese whaling ship, the harpoon vessel Yushin Maru #2. Captain Paul Watson devises a dangerous plan for two of his crew members to board the Yushin fleet and deliver a letter telling them to stop the killing of whales.

With Ben & Giles of Sea Shepherd being held hostage aboard the Japanese whaling ship Yushin Maru #2, Captain Paul Watson is pleased at the international media storm he's created & rejects an offer from whalers to release the hostages.

After three long days, Pottsy and Giles are transferred back from the Yushin Maru and become instant celebrities with the media. Just as they are settling back in, the crew discovers that an unknown ship has been following them!

The ship's engineer reports that one of two engines is broken. Now they will be unable to keep up with the Japanese whalers and are forced to return to Melbourne for repairs. While heading back, they have to navigate through a massive oceanic storm.

Armed with new volunteers, the Sea Shepherds head out to sea to find the Japanese whaling ships. After they pinpoint the fleet's location, the Captain raises the stakes and plans for another boarding. This time it will be an all-female boarding team!

The Sea Shepherds have finally found the most important ship in the Japanese whaling fleet, the Nisshin Maru factory ship. Everything has led to this moment and despite warnings from the Japanese whalers, the Sea Shepherds strike.

The Sea Shepherd Conservation Society volunteers head to Antarctica for their most intense anti-whaling campaign yet. No sooner does the ship leave port than the ship's Gyro breaks and they hit a massive storm the size of Australia.

A huge weather system moves in and the ship is forced to take shelter behind a large iceberg. They are surrounded by ice so thick they can no longer move and it threatens to severely damage the ship.

The Sea Shepherd volunteers gather intel on the Japanese fleet's location and realize that they are low on fuel. Then, they come across the entire Japanese fleet searching for one of their crew members who has fallen overboard.

The Sea Shepherd finds the Japanese fleet searching for a crew member that fell overboard. The Captain orders his crew to head back to port. There, a stranger hands the captain a letter filled with a mysterious white powder.

The ship is quarantined at port and the crew anxiously waits to find out if they have been exposed to Anthrax. Later, a crew member quits the campaign.

Surrounded by the Japanese whaling fleet, the Sea Shepherds ready themselves for their biggest day of battle on the campaign. Helicopter pilot Chris confirms the crew's fears: all of the whaling vessels are equipped with LRAD weapons.

Captain Watson is in pursuit of the Japanese factory vessel when all three Japanese harpoon ships suddenly appear out of the fog. The Sea Shepherds are completely outnumbered.