Watch Land Shark for Free: How to Stream the Movie Online at 123Movies. . Qian Cheng, the boss of the pharmaceutical company, has invested in the establishment of a biopharmaceutical research laboratory located deep in the jungle. By modifying the shark gene to develop a new type of anti-cancer drug, but when the drug is about to be put into mass production, a huge crisis also came quietly: due to the change of the shark's gene, the gene mutation was fierce and showed the characteristics of other organisms.