is an American disaster horror sci-fi television film and the third installment in the Sharknado series, followingSharknado 2: The Second One. It premiered on Syfy on July 22, 2015.The film was directed by Anthony C. Ferrante with Ian Ziering , Tara Reid , Cassie Scerbo , and Mark McGrath reprising their roles from the previous installments. Also joining the cast are David Hasselhoff , Bo Derek , Ryan Newman , and Jack Griffo .
Sharknado 3: Oh Hell No!premiered on DR3 in Denmark on July 22 at 21.30 CET. It premiered on Syfy in the U.S. on July 22 at 9/8c and on Syfy in the UK the following day, July 23.
Following the events of the previous film, Fin and April have remarried and are expecting another child. While Fin is in Washington, D.C. to receive an award from the president ( Mark Cuban ) for his heroics in Los Angeles and New York, another sharknado strikes, devastating the nation's capital. Fin and the president work together to defeat the sharks, and the storm unexpectedly and suddenly ends on its own. Fearing that April, who is at Universal Orlando with their daughter Claudia ( Ryan Newman) and her mother May ( Bo Derek ), is in danger, Fin heads for Florida. During his trip, Fin encounters another sharknado but is saved by Nova ( Cassie Scerbo ) and her partner Lucas ( Frankie Muniz ); following her near-death inSharknado, Nova has become a hardened warrior tracking the storms with Lucas's help. Fin hitches a ride with them but a sharknado strikes Orlando before they can arrive, and they get detoured. They stop at a military airport where Nova and Fin receive clearance to use a fighter jet to bomb the sharknado, but Lucas is killed. Meanwhile, another sharknado develops and hits Daytona , interrupting the Daytona 500 race, killing several people (including Brad Keselowski ) and destroying many racecars. Nova and Fin release a bomb above the track and prevent further damage. However, this does almost nothing to stop the sharknadoes. Realizing that the numerous storms will soon combine into a massive "sharkicane" that will destroy the entire East Coast, Fin decides to enlist the help of his estranged father, former NASA colonel Gil Shepard ( David Hasselhoff ), for a risky plan to destroy the storm from space.
Gil, Fin, April and Nova reach NASA Headquarters and learn that the only solution, according to engineer Harleen Quinn (Erika Jordan), is to use a top-secret spacecraft to drop tanks of rocket fuel into the storm, destroying it from orbit. The tanks detonate but fail to stop the sharkicane; as a desperate Plan B, Gil reveals that he can deploy the Reagan-era Defense Strategic Defense Initiative satellite from outer space. Gil, Fin, and April are given instructions on how to use the weapon. There are complications, however, and Gil must sacrifice himself in order to deploy the top-secret laser weapon, and he's stranded in space. More complications occur when, in an unprecedented turn of events, the laser beam which purposefully destroyed the sharknadoes, propels the sharks into space. The space shuttle is attacked by sharks and, while Fin fights them off using an energy-beam chainsaw given to him by Nova, he and April are eaten by two separate sharks, which proceed to then fall back down to Earth. Though the sharks are charred, both Fin and April emerge from the sharks unharmed. When April emerges, it becomes evident that she gave birth while inside the shark. Fin decides to name his newborn son Gil in honor of his father, who is last seen having reached the moon, accomplishing his lifelong dream.
A falling fragment of the space shuttle falls from space, and it appears it's about to hit April. An after-movie advertisement states that fans can vote on how it plays out using the Twitter hashtags #AprilLives or #AprilDies, and the results of her fate will be revealed in the nextSharknadomovie.