Ethan Kane, a legendary hero living in retirement as an ordinary truck driver, finds himself unexpectedly caught in a conflict between the elite and powerful super-powered factions during the GGA’s tenth-anniversary celebration. Following a dispute in a parking lot, he is humiliated by the scions of the Thorne family, who publicly question his identity; meanwhile, his son—Liam Kane, the newly appointed GGA commander—misjudges his father's true capabilities. With the arrival of Ava Rothschild and the confirmation of his identity, the truth about Ethan’s past as the legendary "Guardian of the Heavens" begins to surface. Amidst a series of challenges, he crushes young heroes like "Golden Wing" with overwhelming power, stunning the Alliance's leadership and triggering a greater crisis involving the underground forces "Night Shadow" and the "Shadow Mercenary Corps"—ultimately compelling his return to the world of heroes.
