04:02 AM EDT 12/22/2014
Originally posted 03/25/2012 11:10PM
When Mad Men's season 4 wrapped up nearly a year and a half ago, Don Draper (Jon Hamm) was on the precipice of a major life change. He had proposed to his young secretary, Megan (Jessica Paré) after taking her on a trip to Disneyland with his children.
As in seasons past, Sunday night's premiere episode has been shrouded in secrecy – with nary a plot point revealed. (Not even the year in which the season is set!)
So, if you haven't seen the season 5 premiere yet, stop reading! There are spoilers ahead …
Top 5 Most Voted Stories
Bereaved Parents Pay It Forward to Honor the Little Girl They Lost
PHOTOS: How the Kardashians Are Celebrating Khristmas
Melissa Rivers's Christmas Wish: I Want My Son to Laugh Again
Teen Turns to Crowdfunding for Skin Surgery After Losing 208 Lbs.
Beyoncé Spreads Christmas Cheer with Photos from Family Trip to Iceland
Top 10 News Categories
The most buzzed about stars this minute!
Treat Yourself! 4 Preview Issues
More On PEOPLE.com
Got a News Tip?
Send it to our People.com editors!