A film frequently depicts a brutal war environment more accurately than any other genre. This paper analyses Gamora’s traumatic experience of genocide in the sci-fi Marvel Cinematic Universe through the theoretical frameworks of ecocriticism and trauma studies, concentrating on how systemic violence and forced cultural assimilation shape individual identity focusing on the respective films: Avengers: Infinity War (2018) and Avengers: End Game (2019). Gamora is abducted as a child by Thanos and is raised in an environment that normalises genocide as a method of balance, conditioning her into an instrument of destruction. However, her eventual rebellion against Thanos reflects the struggle of survivors of cultural erasure and authoritarian control, making her a compelling figure for examining the long-term effects of environmental violence. This paper also engages with eco-trauma theory, arguing that Gamora’s existence is influenced by ecological destruction that mirrors historical patterns of genocide and environmental exploitation. In this context, eco-trauma theory explores the psychological and cultural effects of environmental destruction, displacement, and ecological violence on individuals and communities. It connects environmental crises—such as the destruction of alien communities and even planets, climate change, and war-driven devastation as showcased in the MCU—to trauma studies, emphasising how both the physical environment and human psychology are intertwined. Her attempts to reclaim agency—by joining the Guardians of the Galaxy and opposing Thanos—illustrate the resistance of the oppressed against the hegemonic systems. Ultimately, this study positions Gamora as a symbol of survivor identity, questioning whether one can entirely escape the ideological and environmental forces that shaped them.