Vine by Slade

A comic book-style title card displays the name "GRAYSON" over a character in a dark costume, followed by a sequence of animated scenes featuring a young man in a black mask and suit, identified as Nightwing, who is shown in a high-tech command center, in a tense confrontation with a hooded figure in a snowy, nighttime environment, and finally standing in a room with Batman and another figure, with the name "SLADE" appearing in red text in the corner of each frame.