The 'Sharknado' franchise is set to come to an end after its sixth instalment. The low-budget mockbuster from Syfy will see the return of Ian Ziering and Tara Reid as shark-battling couple Fin and April Shepard, TVLine report. Following the events of the fifth movie - which ended with Fin walking the streets of earth alone after it has been ravaged by man-eating storm - the currently untitled sixth movie will see the hero attempt to time travel back to where it all started.