Continuity mistake: When Dr Jeremy Kates rushes into the ER when Frank crashes, he doesn't have surgical gloves, a moment later you see him draining fluid from his heart and he is wearing gray gloves.
Continuity mistake: When Felicia Jones is walking down the hallway after visiting Lucas Dalton in jail, she has a flashback and drops her phone. As she is walking away you see the phone a few inches away from the hallway wall. Then when she is a few feet further down the hallway the phone is now in the middle of the hallway, more than a foot away from the wall.
Continuity mistake: After Egan Foote is fired, he goes to his office and picked up a photo of himself and his wife and walks down the corridor. When he comes out of the doors and does his little happy dance, he no longer has the photograph.
Continuity mistake: When the group is sitting in the diner talking, when they show Franny from over her shoulder her hair is behind her right ear, when they show her from the front it's not behind her ear.