The season 4 premiere of How I Met Your Mother opened up with Ted (Josh Radnor) proposing to Stella (Sarah Chalke), his girlfriend from last season.
After Stella accepts his proposal, Ted soon realizes that he barely knows the woman he asked to marry! Ted spends the rest of the episode trying to get to know Stella while Lily sets Barney up on a date with Robin. Find out how it all went in our "Do I Know You?" recap.