WTF is happening on OLTL? SO I havent watched one life to live for about a year now...?

My work schedule changed again and I attempted to watch it today after a looooong long time and Im completely lost! Star had a baby??? WTF Who the heck is Gigi and why is it 1968something! Can someone give me a really quick break down of whats happening and maybe a lil of how it happened - most importantly Star and her baby who'd she give it too? Why is the old Marty back didnt the new Marty die? OMG Im so lost! Help Ive tried to read thru the daily recaps for the last couple of months but I have a really short attention span and it isnt working!