I'll try, but I missed a few parts due to my two feuding teens. Maybe someone can fill in the gaps.
Corday is orienting three new med students, two young and not too bright. One who is older and very smart, but has Parkinsons disease. The older med student came late, after the others had left, and right in the middle of the ER getting slammed with burn victims from an apartment fire, so even though Corday wasn't going to listen to his excuse for being late, he was sucked into all the chaos by the docs telling him to help with procedures. He was having symptoms of the Parkinsons, and Luca asked him to leave a pts room when he was discussing her babys fatal diagnosis, and he accidentally popped a liter bag of IVF during an emergency. Corday tried to tell him she would give him a break and to take a day off after she found out about his illness, but he said he did not want special treatment and returned the next day, which was at the end of the show, and was able to show up the two younger med students by answering Cordays questions.
Robert was having issues with not being able to use his arm, and started to open up to Corday when they were alone. She tried to comfort him and he reached out and caressed her face. She got upset and left the room in a hurry saying she was being paged. Later, he apologized, said he had a weak moment, and that it wouldn't happen again.
Luca was acting like an azz, arguing with one of the nurses (who he had slept with), and (I think) some other nurses complained about him too. Abby, acting as nurse manager, tried to counsel him, and he didn't take it seriously, and made a lewd comment to her. Then Luca and Weaver had a disagreement on how to care for the sick baby.
Abby was wearing a 'naughty nurse' outfit for halloween, which she claimed was supposed to be retro. A couple pts hit on her, and some of the other staff made comments about it. (I was waiting to hear the reaction on this from the allnurses ER fans)
Hope this helps......Can anyone else fill in?