[1] In the film, Stewart documents current attitudes about sharks, and how shark-hunting industries are driving them to extinction.

Stewart travels with Paul Watson and his Sea Shepherd Conservation Society ship as they confront shark poachers in Guatemala and Costa Rica.

Among the group's experiences are boat confrontations, poachers, police, corrupt court systems, and eventually murder charges.

Also, Stewart states how the increasing demand for shark-fin soup in Asia is fuelling an illegal trade in sharks.

Stewart discovers that sharks prevent the overconsumption of plankton by other fish, which moderates climate change.