The Doctor realizes the reason why his future self gave River Song his sonic screwdriver. He uses it to save her and the people trapped in the library.

Ted tries bacon for the first time and goes overboard by eating too much of it.

Taylor Swift and Ellen DeGeneres talk about Taylor's deepest's fears.

Phil and Claire think Hayley got secretly married, so they try to retrace her digital steps to figure out what's going on.

Ellen interviews the leader singer of Maroon 5, Adam Levine, about his new star on the Hollywood Walk of fame and being a co-host on the American TV Show The Voice.