In the wild, lions kill people who come too close. So says every shred of evidence. But zoologist and animal trainer Dave Salmoni claims that lions are more wired to accept people than attack them. The collateral for this claim is to be his own life - or death. Into the Lion's Den tracks the adrenaline inoculated months Dave spends walking, unarmed, deeper into the killing zone of a pride of wild lions. Until he's within a few murderous paces... It's a world where the curtain between life and a savage death never quite closes; and the viewer's pulse stays hammering long after the bittersweet end.