<Tr> <Th_colspan="2"> Chronology </Th> </Tr> <Tr> <Th> Followed by </Th> <Td> Sharknado 2: The Second One </Td> </Tr> <P> Sharknado is a 2013 made - for - television science fiction disaster comedy film about a waterspout that lifts sharks out of the ocean and deposits them in Los Angeles . It is the first installment in the Sharknado film series . It first aired on the Syfy channel on July 11, 2013, and stars Tara Reid, Ian Ziering, and John Heard . It was also given a one - night only special midnight theatrical screening via Regal Cinemas and NCM Fathom Events, where it earned less than $200,000 from 200 screenings . Four sequels were produced: Sharknado 2: The Second One, Sharknado 3: Oh Hell No!, Sharknado: The 4th Awakens and Sharknado 5: Global Swarming . A sixth sequel is in development . </P> <P> A freak cyclone hits Los Angeles, causing water spouts that scoop up man - eating sharks and flood the city with shark - infested seawater . Bar owner and surfer Fin sets out with his friends, Baz, Nova, and George, to rescue his estranged wife, April, and their teenage daughter, Claudia, after the bar and boardwalk are destroyed by the flooding . While heading to April's home, the group stops in a freeway to save people as flooding causes sharks to attack . George is killed and the group learns of a tornado warning . They arrive at April's house just before the first floor is flooded and shark - infested . Collin, April's boyfriend, is eaten by sharks, but the rest of the group escapes unharmed from the house, which collapses . </P>

Where do the sharks come from in sharknado