John Connor is evil in new teaser for 'Terminator Genisys'

Humanity's saviour John Connor is turned into a vengeful killing machine in a new teaser for "Terminator Genisys". 

In a film that changes continuity from earlier "Terminator" installments, human resistance leader John Connor is transformed into a cyborg by Skynet and ordered to annihilate humanity, reported Digital Spy.

It's up to his mother Sarah Connor (Emilia Clarke), time traveller Kyle Reese (Jai Courtney) and the heroic T-800 known as Guardian to stop Skynet and save John's soul. Along the way, they must do battle with the menacing T-1000 (Lee  yung-hun) and a younger version of the T-800.

Watch the trailer of the movie

Director Alan Taylor's sequel has received the blessing of James Cameron, who created the franchise back in the 1980s. "Terminator Genisys" opens on July 1 in the US and July 2 in the UK.