Believing he is going to jail tomorrow, Alex makes a big decision about his future. While the hospital is overrun with victims of a building collapse, Richard demands answers from Bailey about Eliza's presence at Grey Sloan.
Eliza faces a challenging first day thanks to Richard's disruptive efforts; Meredith continues to search for Alex.
Stephanie gets caught in a relationship crossfire; Bailey has to decide how to support Eliza; Maggie receives a surprise visitor.
Alex makes a shocking discovery as the doctors face danger with a difficult patient; Owen receives support from Amelia.
Meredith must deliver some big news to Nathan, which could alter the course of their relationship; the hospital comes under risk when a dangerous patient escapes the room.
