The film stars Kate Mara (127 Hours) as Megan Leavey, a U.S. Marine who was assigned to clean up the K9 unit in the Iraq War where she formed an unlikely bond with a particularly aggressive dog, Rex. The two ended up serving together and completed more than 100 missions before both were injured in a 2006 IED explosion.
Leavey received a Purple Heart and was honorable discharged after her recovery, while Rex was kept on active duty. Leavey spent the next five years fighting to adopt the dog even while Rex was scheduled to be euthanized after developing a palsy.
With Edie Falco (The Sopranos), Tom Felton (Rise Of The Planet Of The Apes), Bradley Whitford (Get Out) and Common (Selma) also in the cast, Megan Leavey arrives in US cinemas 9 June but has yet to secure a UK release date.