The Best Episodes Written By Greg Nelson

A sleep-deprived Alex takes on a night shift in the ER where an all-star hockey enforcer may be skating full-speed towards an early death. Meanwhile, Charlie meets a suburban punk who is facing the biggest fight of his life.

A passenger's illness forces a plane to land; when Alex performs emergency surgery on the patient, she realizes a deadly and contagious virus may have been brought into the hospital.

Alex is trying to get her life back to normal with Charlie and at Hope Zion Hosital – but with Charlie’s head in the clouds and the pressure to find her medical niche – she’s struggling. Inspiration comes in the form of an immigrant doctor who needs Alex to save his wife’s life, and in return, helps her find her calling.

Following up on intel from a mysterious source, Mrs. S heads on the road with Sarah to investigate a lead on a Neolution defector. Meanwhile, an unexpected reunion takes place on the island, while Cosima's research leads her to a discovery more terrible than she could have ever imagined. As more pieces slide into place, the puzzle only seems to become more complicated.