Daniel and Zara bite off more than they can chew at a dinner party. Al's random act of kindness means he is left looking after Joe - what could possibly go wrong?

Daniel and Zara entertain their new friends, but will they go through with their intention? Rob is surprised when he arrives at his group therapy session. Emma is caught in the middle of a disagreement between an inspector and a solicitor, and has to decide who to side with.