Captain America: Rising to A Legacy

Captain America IV: Rising to A Legacy (2024) is an idea meant for the first film in Sam Wilson's Captain America trilogy. In this hypothetical, it takes place either at the very end of Phase 4 or at the beginning of Phase 5. The film is a sequel to Captain America: Civil War, Avengers: Endgame and The Falcon and The Winter Soldier.

The film is directed by Rick Famuyiwa from a screenplay by Regina King and Shaka King, and produced by Kevin Feige and Barry Jenkins.

A sequel, Captain America V was released two years later.

Synopsis
After Sam Wilson adopts the mantle of Captain America, he must face a new threat rising from the ashes of Hydra -- Sinthea Shmidt, aka Sin, the daughter of the Red Skull who is using experimental cloning technology to help her overthrow the U.S. Government.

Plot Details
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Cast

 * Anthony Mackie as Sam Wilson / Captain America
 * Sebastian Stan as Bucky Barnes / Winter Solider
 * Carey Mulligan as Sinthea 'Sin' Schmidt / Red Skull
 * Til Schweiger as Frank Simpson / Nuke
 * Toby Stephens as Dennis Dunphy
 * Brad Dourif as Dr. Bernhold Renner
 * Danny Ramirez as Joaquín Torres / The Falcon
 * Samuel L. Jackson as Director Nick Fury
 * Cobie Smulders as Maria Hill
 * William Sadler as President Matthew Ellis
 * Adepero Oduye as Sarah Wilson
 * Chase River McGhee as Cass Wilson
 * Aaron Haynes as AJ Wilson
 * Hugo Weaving as Johann Schmidt
 * Chris Pine as Riley Gilford

Trivia

 * Sin's arc is purely to ‘prove’ that she's greater than both her father and Captain America. This would mirror Sam’s arc of not feeling as good as Steve.
 * Tony Stark's new element, Badassium, now officially known as Iso-8 is a highly crucial part to the cloning process which Sin is seeking to obtain more of.
 * There will be a clone Steve Rogers, who is Captain Hydra.