Chicago Med Season 7 Episode 20 revolves around secrets, especially those involving parents and children.

Choi is struggling in therapy to deal with the revelation that his father had a relationship with another man that he never knew about. He is called to the ED in the middle of his session, where he meets Miles, a 50-something outdoors enthusiast with a young adult daughter. MIles fell while climbing and Archer thinks it's going to be an easy case so he leaves it to Ethan. However, Ethan soon realizes Miles has concerning symptoms and does an MRI, which leads him to the discovery that Miles has MS. Miles is adamant about keeping his diagnosis secret from his daughter, which Ethan feels is wrong because of his own situation.

Meanwhile, when a patient who knew Maggie in high school comes into the ED, he has enough in common with Vanessa that she wonders if he is her father. Maggie says he is not but will not reveal the father's name as they agreed to a closed adoption and she can't break his confidentiality.

Finally, Scott gets roped into treating a mobster's young daughter, which could lead to trouble for Milania, while Will deals with people believing he only turned on Cooper to get a large settlement.

To find out what happens, watch Chicago Med Season 7 Episode 20 online.