: After a season of uncertainty, Mel and Jack finally receive their paternity test results. They discover that Jack is the father of Mel's baby, and the child is a girl.

: Denny finally reveals the reason he has been keeping his distance from Lizzie: he has Huntington’s disease , which he describes as terminal. Other S4E12 "The Long Goodbye" Episodes

: In the final moments, Charmaine suffers a medical emergency and reveals a shocking secret: Jack is not the father of her twin boys.