Deanna Calavicci struggles to recover from a car accident while her father Al does double duty as Project Observer, for both Sam Beckett and his daughter Sammi Jo.

Deanna and Al Calavicci share Project Observer duties as they assist Doctors Sam Beckett and Sammi Jo Fuller in their Leaps through time, but as Deanna struggles to heal from an accident, the burden of monitoring the wayward Leapers falls onto Al's shoulders. Can Deanna find a solution to their dilemma, and overcome the trauma of her accident?

Alternate Universe. The vest exploded during the showdown between Moriarty and Holmes at the pool.

A brief visit from Mycroft Holmes to visit Sherlock at 221B Baker Street.

Ducky learns of Maggie's death.

The Holmes parents are interviewed by British Secret Service and Mycroft plays the tape for Sherlock. Incomplete, just playing with an idea.