Fabian tells Nina that he lost one of the puzzle pieces but Patricia gets it back from Alfie. Meanwhile Jerome volunteers to manage Mara's election campaign. And the Sibuna crew are shaken when they solve the next part of the puzzle using Sarah's mystery numbers.

Fabian figures out that the newest riddle refers to the grandfather clock in the hallway but the secret compartment is empty. Alfie catches him in the search and the Sibuna crew misleads Alfie with a story about aliens.

When the Sibuna crew try Nina's numbers on the latest puzzle piece mysterious writing appears on the wall. Meanwhile Mick returns and his comments to Amber are misinterpreted.