When the E.D. is flooded with patients from a crash, the entire team is pulled in to help. Charles can't shake the feeling that he knows the new E.D. attending. Archer has second thoughts on the eve of his kidney transplant.

Goodwin recruits Charles to evaluate her ex-husband's memory. Archer treats one of Sean's peers from the rehab center. Asher treats a woman from a rural clinic whose miscarriage was improperly treated.

Ripley and Charles treat members of a cult. Ahmad's suspension takes an unexpected toll on Marcel. Abrams' 5-month-old son lands in the E.D. under questionable circumstances.

Ripley and Charles treat a high-risk prisoner who may have dementia. Archer and Sean clash when a resident from Margo's facility lands in the E.D. Marcel receives shocking news.