April and Arizona find themselves arguing in switched positions. Richard tries to stop Catherine interfering in others' lives. Meanwhile residents are motivated to compete for a great research grant.
Meredith goes on an ambulance ride with Owen and Nathan to pick up a heart for a transplant patient. Musician and MS patient Kyle Diaz is admitted to Grey Sloan Memorial with a tremor in his hand, and the residents apply for the Preminger grant. Meanwhile, Catherine continues to insert herself into Jackson and April's business against Richard's wishes.