I just watched. I'll give it a try.
Luca has to make some budget cuts. He decides to cut Weaver, and she is really pi--ed off. But she has a job offer in Miami, to be on a newscast. She has a really hard day, and does some Mcguyver type Dr. things and saves 2 lifes, so comes to terms, w/ things, and decides to resign. Next week is her last night on the show.
Morris, is having trouble w/ his credit cards, and finds out that Sam's son has stolen his number, and has spent ALOT. Sam's grandmother comes to town, because she got kicked out of her nursing home, for growing pot

Anyway, she is quite a character. She is going to stay for awhile. She is the one who gets the boy to confess, but the scenes from next week, show her, and him slapping each other.
John Stamo's character(can't remember his name) brings the girl, who's mother he lives with to the ER to shadow. She calls Neala a *****, and then her mom shows up, drunk, and causes a big scene-goes after Neala, saying she can't steal him away. Turns out she used her husb. insurance $$ to pay for his med school. Kind of sucks.
Pratt, and the little blond Dr. treat a patient who dies, because of the wrong meds. Turns out that Pratt saw the pt. at the church clinic, and gave them to him. He takes the fall, for the blond, and tells the wife, but somehow legal finds out, and turns the church into the authorities. Just a matter of time before the learn Pratt was involved- which is a felony.
Can't think of much else. The male nurse from S. Carolina helps Sam move, and is staying for awhile.
Hope that helps.