Avsnitt 21

A former prison guard, Sefra, has got hold of a supply of cesium 138, which explodes at temperatures above 70 degrees. Sefra plans to sell the sample and the formula from the closed-down prison base where he once worked. Rollin and Barney go in as a photographer and model respectively, and Sefra ""learns"" that Barney is a former prisoner returning for revenge . The team fakes a generator break down while Sefra beats Barney, and the cesium starts to heat up. Sefra has it taken to a nearby hospital refrigerator, where the IMF makes the switch. When Sefra discovers the missing jar, he forces Barney to show him the escape route which he supposedly used to escape . As Sefra makes his own escape, the IMF send the cesium sample toward him on a remote-controlled mini-tank, and it blows up, killing Sefra and making sure no one gets the formula or the sample.