The Doctor, Liv and Helen are surprised to get a letter delivered to the TARDIS from the Doctor's old school friend, Drax.

They're even more surprised when it's followed by a parcel also sent by the intergalactic con-man, asking them to keep its contents safe. Contents that seem to be a lot of worthless junk.

And their surprise gets even bigger when this parcel is itself followed by an invitation... to Drax's funeral.

And that's just where the surprises start.