[s10e15] The Missing Piece -

The episode uses the metaphor of biological evolution—the body shedding useless parts like the appendix—to mirror the characters' emotional journeys.

Reviewers from TV Fanatic and Entertainment Weekly noted that the episode felt "bright and shiny" compared to the season's earlier heavy drama. Critics praised the use of the song "Time After Time" during the final scenes, which they felt perfectly underscored the reconciliation of the show's core couples. [S10E15] The Missing Piece

: Arizona advises Alyssa, a patient of Callie Torres, who suffers from chronic pain and requests a double amputation to gain mobility through prosthetics. This forces Callie to confront her own fears regarding Arizona’s amputation and the trauma they both endured. The episode uses the metaphor of biological evolution—the

Characters like Stephanie Edwards demonstrate resilience by confronting those who hurt them. Stephanie finally tells Jackson Avery that she no longer cares about him, reclaiming her power and moving past their humiliating breakup. : Arizona advises Alyssa, a patient of Callie

: Arizona has a disastrous day that begins with juice spilled on her prosthetic leg and culminates in it being accidentally broken during a gurney collision with Stephanie Edwards.