Grey’s Anatomy returned from the winter hiatus for the back half of Season 21, resuming almost immediately after that jaw-dropping midseason finale. With Lucas and pregnant Jo trapped in the convenience store massacre, the episode provided high-impact drama, suspenseful medical emergencies, and a close-call betrayal. Bailey told Richard that Mika had resigned from the residency program, leaving Jules in disarray. Her anger resulted in a fatal error—during surgery on Damian, the convenience store robber, she did not strap him to the table. When the table tipped during surgery, he slid off, and Jules had to let Simone bear the brunt of Teddy’s wrath. As much as the experience of being shot was traumatizing, Lucas wanted to go back to work. A noisy sound, however, brought on a panic attack, confirming Ben’s advice that he must undergo a psychological assessment before going back to work. Later, he was stable, even rekindling the romance with Simone. Jo’s bleeding was caused by stress, and a young physician suggested a cervical cerclage to safeguard her pregnancy. Link procrastinated, joking …