Time is quickly running out for Dew and Mum; Mum promises to help solve the mystery of Dew's murder before the end of the timeframe Mum can travel between their universes. 

Mum unravels the mystery behind who the shooter under the biker helmet is.  With possibly one last visit across their universes, Mum must give Dew all the help he can to save not just one life, but two.