The film features human impacts on marine life such as plastic marine debris, ghost nets and overfishing around the world. It argues that commercial fisheries are the main driver of marine ecosystem destruction. 'Seaspiracy' rejects the concept of sustainable fishing and criticises several marine conservation organisations, including the Earth Island Institute and its dolphin safe label and the sustainable seafood certifications of the Marine Stewardship Council. It also criticises efforts by organisations to reduce household plastic given the impact of ghost nets. It accuses these initiatives of being a cover-up for the environmental impact of fishing and corruption in the fishing industry. The film advocates for marine reserves and the elimination of fish consumption. The documentary also covers whaling in the Faroe Islands, the Taiji dolphin drive hunt, and modern slavery within the fishing industry, in particular its prevalence in Thailand.