"Grey's Anatomy" Quick-Cap 10/22/15

"Grey's Anatomy" is finally getting good again and it is all thanks to a certain doctor named Penny! If you missed tonight's episode, we have you covered. 

• Penny is Callie's new girlfriend.
• Penny has come to dinner at Meredith's home.
• Penny was the doctor who could not save Derek. 
• Meredith blurts that out at dinner.
• Amelia, Derek's sister freaks. 
• Meredith almost kills Penny...and Amelia. 
• Penny has a job at the hospital.
• No one wants that.
• Meredith finally gives in but she will definitely give Penny hell...and I do not blame her. 

*Why is everyone still hating on Jo?