SUPERWHOLOCK! The TARDIS takes the Doctor to present-day London to help a consulting detective and his friend solve a series of unfortunate events that has the high-functioning sociopath stumped. Things continue to take a turn for the worse as what was thought to be gone forever returns with a vengeance.

With the Ponds gone, the Doctor mops about for a bit, then goes to River to find out she's pregnant, quite far along actually and it's the Doctor's. With River back in Stormcage, he has no choice but to raise little Amelia Pond Smith all by himself. And he finds out that it's actually not that bad.