Bucky Barnes, aka the Winter Soldier, had his arm stolen in the MCU Phase 4, and its location may have finally been revealed via the streaming series I Am Groot only to cause a massive continuity problem in the MCU. Rocket Racoon has had a penchant for collecting mechanical body parts ever since he jokingly asked Star-Lord to collect a prisoner’s bionic eye in Guardians of the Galaxy, and that joke continued into the Guardians of the Galaxy Holiday Special as Nebula gifted Rocket Bucky’s vibranium arm for Christmas. Now, a quick Easter egg may have complicated the matter.
