Mack is trying to build bridges with Jason, oblivious to the fact that he never took the DNA test. Katy, meanwhile, can't figure out why Jason won't spend time with the baby. Is their relationship doomed?

Also in matters of the heart, Adam tells Fia that he wants to make their relationship work - but then he hears what she has in mind... 
 
And when there's a robbery in Ros na Rún, suspicion immediately turns to Colm. Will he ever get a break?