Alexandra Grey

Family secrets bubble up to the surface when Maggie's sibling arrives back in town. Dr Manning works on a case that is getting lost in translation.

Charles must make a tough decision about his relationship with Caroline, Rhodes faces a huge loss, while Choi and April handle a challenge.

Willis helps a young soccer player injured in a bus crash; a patient's hesitancy to disclose that she's transgender compromises the doctors' ability to diagnose her abdominal pain.

Mac and Riley go missing and wake up 24 hours later in a cornfield with no memory of how they got there; they must unravel the mystery and find out how to get rid of the nanotrackers in their bodies, no matter the cost.

Mac and Riley head overseas together to prevent a governmental collapse and inadvertently inhale new deadly microscopic technology.

When the case against a popular sports star falls through, Benson digs into the suspect's past to uncover additional victims. Velasco is disappointed when he meets one of his heroes.