When Clara wakes up on Christmas morning next to her husband Drew, she's filled with joy because she has the perfect present: she's seven weeks pregnant with their first child.

But no sooner does Clara tell Drew the news than an earthquake strikes in nearby San Francisco. The next thing Clara knows she's waking up in bed - alone - and discovers she's three years in the future. Where is her husband and what has happened to the child she was expecting? Clara is no stranger to unusual occurrences, but the last thing on her Christmas list was to time travel... again.