BBC unveiled the season-10 trailer for Doctor Who, premiering April 15.
The 30-second clip features the Doctor (Peter Capaldi) flanked by returning ally Nardole (Matt Lucas) and his newest companion Bill Potts (Pearl Mackie) all walking through a library while explosions go off around them.
The trailer is narrated by Bill, who says: “The first time you meet him, he’s funny. The second time, he’s amazing. The third time you realize he’s the most dangerous man in the universe.”
The clip concludes with a tagline stating that this season will be “a time for heroes.”
Season 10 will be Capaldi’s last season in the title role, with his replacement yet to be confirmed. Mackie is making her regular debut as Bill Potts in season 10, although she appeared in the show’s Christmas special in December.
Doctor Who premieres Saturday, April 15 at 9 p.m. ET on BBC America.