The 'Captain America: The First Avenger Junior Novel' follows Steve Rogers' journey. Steve is initially a small and sickly young man, but his courage and sense of justice are unwavering. He volunteers for a project that turns him into a super - soldier. As Captain America, he faces numerous challenges. He has to deal with the power - hungry Red Skull, who is using the Tesseract for evil purposes. Along the way, Steve also forms deep bonds with his comrades. His relationship with Bucky is especially important. The story is about his fight for good, his leadership, and his place in the war - torn world of the 1940s.