Marvel's 'Black Panther' spinoff 'Ironheart' puts a new hero in the spotlight. Here's what to know about the TV series.

Dominique Thorne as Riri Williams in "Ironheart."

Jalen Marlowe/Marvel Studios/Disney+

• Marvel's "Ironheart" follows Riri Williams, a character from "Black Panther: Wakanda Forever."
• Riri (Dominique Thorne) is a teenage inventor who builds her own version of the Iron Man suit.
• The Disney+ show is produced by "Black Panther" and "Sinners" director Ryan Coogler.

Marvel's "Ironheart" puts a new hero in the spotlight.

Three years after she was first introduced in "Black Panther...