Try this series from the start. Cap is exiled in Arnim Zola’s mutated dimension and later drained of his super soldier serum by ex-S.H.I.E.L.D. agent Iron Nail (#21). Sam Wilson is called upon to pick up where an elderly Rogers left off.
A ‘spy-fi’ action adventure following Captain America (2012) #25. Working alongside Dimension Z’s Nomad, Sam rips apart a hidden Hydra stronghold that guards key intelligence.
Sam faces the music of public opinion when he ‘campaigns’ across the United States. Juggling duty with expectation, he finds the position doesn’t gel instantly…especially when Steve Rogers puts him to task.
Persuaded to join a team, Cap takes on a mentoring position with Thor, Vision and Iron Man in a dual-generation Avengers squad. Teens Nova, Ms. Marvel, and Miles Morales: Spider-Man learn on the job while facing an overpowered alien threat.
After he’s converted into a bird/man hybrid by the Sons of the Serpent, teen Joaquin Torres adjusts to a slew of new abilities including a genetic link to falcon Red Wing. Sam makes the natural choice to appoint Joaquin his all-new sidekick.
The three Captain Americas past and present – Steve Rogers, Bucky Barnes and Sam Wilson – are drawn into conflict over Pleasant Hill, a psychic penal colony whose core is powered by a human embodiment of the Cosmic Cube.
Their morale shattered by Civil War II, the Avengers somberly reassemble with a few new faces in the mix. Time warlord Kang has been recklessly causing dimensional pockets, gorgeously captured by artist Mike Del Mundo.
In the most heartrending battle of his life, Sam is pitted against a Cosmic Cube doppelganger of Steve Rogers who has sworn allegiance to Hydra. Read the entire Secret Empire event, available as a Reading List.
Disinterested in embodying the symbol of the shield, Sam steps down as Cap. The final culmination to Sam’s resolution with Steve comes in Secret Empire (2017) #8-9.