20 years after the original, the cast of the original Trainspotting is returning… and we’re offered the first teaser trailer.

An adaptation of Irvine Welsh’s Edinburgh-set novel, the 1996 film made the careers of director Danny Boyle and cast members Ewan McGregor, Ewen Bremner and Robert Carlyle. All are reuniting for a sequel… though the premise is currently unknown.

Check out the teaser above.

Trainspotting 2 is due out January 27, 2017.