Despite building up some anticipation for what’s to come, “Captain America: Brave New World’s” post-credits scene plays its cards close to the vest. The sole scene, which arrives after the full credits roll, sees Wilson visit Samuel Sterns (Tim Blake Nelson) at the Raft, a maximum-security prison for superpowered beings.

Brave New World” is, by official count, the 35th movie in the Marvel Cinematic Universe that began in 2008 with “Iron Man.” It’s also the fifth in the