Summary Tension escalates in Antarctica as the Thunder takes desperate measures to shake off pursuit by the Sea Shepherds. On the Bob Barker, Capt Peter narrowly avoids getting rammed by the poacher ship. Sea Shepherd's second boat the Sam Simon arrives in time to ramp up the pressure on Thunder. Along the Palau/Philippines border, the patrol ship comes across a "mother boat," with a dozen of smaller boats attached to it. Journalist Jim Wickens encounters a weary assortment of poor Filipino fishermen, including a small boy who has been dragged out of school by his own father to fish for $100 a month. Their fragile boats, which are taken into the Pacific Ocean on daily fishing runs, are hauled in and their illegal catches confiscated. An intricate sting operation goes into play in Tanzania, where cameras track the dramatic arrest of J4, the "superdealer" whose explosives drive the bomb-fishing industry.

• Documentary