Rush is an Australian television police drama that first screened on Network Ten in September 2008. Set in Melbourne, Victoria, it focuses on the members of a Police Tactical Response team. It is produced by John Edwards and Mimi Butler for Endemol Australia, which was branded as the Southern Star Group during production of the series.

In late October 2011, text phrasing on the cover art of Entertainment One's DVD release of the fourth series first indicated Rush would not return for another series, meaning series four would be its last. Soon after, the production company, known at the time as the Southern Star Group confirmed with TV Tonight that a fifth series had not been commissioned. Network Ten did not issue any press releases stating the wrapping up of Rush. Executive Producer of Drama and Production at Network Ten, Rick Maier, issued a statement on the show's official Facebook page: "While we don't discount a return series, it is not on the cards at this stage – but we do intend to finish season four with a bang, literally."