Tom meets a cute girl, Josh meets an odd boy, and a beer pong game gets really weird at a party. Mum is admitted to a psych hospital; Josh meets her fellow patients and feels strangely at home.

Josh and Arnold go out dancing and bump into a very out-of-it Patrick; Arnold has an anxiety attack.

Rose confronts Alan about his younger girlfriend, Mae - which sparks a heated argument. Geoffrey surprises Josh with tickets for the footy. Josh tries to be polite and involved, but it's clear that he is out of his depth.

Josh's world is thrown into chaos after being dumped by his girlfriend, meeting a very good looking man, and having to care for his fragile mother.

Josh's first day on the job at his coffee cart; Stuart tells Mum he's leaving.

Josh is off to church after God-fearing Aunty Peg catches him making out, and things are hotting up between best friend Tom and ex-girlfriend Claire.

Claire declares she's coming home; Niamh finds out about Jenny; Patrick and Josh get stuck in a traffic jam; Patrick kisses Josh; Tom presents Jenny with a baby rabbit; Mum is distraught to discover that Stuart has a wife.

Claire stays with Tom, Josh and Patrick; Josh asks Dad for money to pay the plumber; a cleaner catches Josh graffitiing a toilet wall; Mum and Ginger have a fight; the housemates go to see Jenny in a school production.

Josh attempts babysitting his new sister and charming his new housemate. As his house fills with semi-clothed twentysomethings and drunk, wary parents, Mum arrives with a sobering surprise.

Josh has decided that Geoffrey is just too intense for him and has broken up with him. Meanwhile, Rose has decided she wants to try online dating. With some tips from Josh, it doesn't take her long to land a date.

Josh is surprised to find he's living in a romcom; Josh till can't seem to win Arnold over.

Josh, Tom and Hannah finally get to meet Arnold's parents; Arnold makes his big coming out announcement.

Josh's dad, Alan, is so convinced that he's responsible for his ex-wife’s predicament that he insists on dropping his younger girlfriend Mae at the corner store before visiting Josh at the family home, in case he upsets Rose.

Patrick moves out of the house; Tom eats all of Josh's special truffled mac and cheese.

A threesome goes wrong, teddy bears' lives are threatened, a lovers' tiff makes a family barbecue awkward, and a revelation over a chocolate quinoa slice makes Josh realize he's had it up to here with things.

Josh's 21st birthday is lost among preparations for a funeral.

Patrick tells Josh he's not sexually interested in him; Josh agrees to take Mum and her friends to the zoo; Tom and Jenny have a weird rabbit funeral and break up; Arnold kisses Josh.

Josh, Tom and Arnold have a night to remember as they experiment with drugs, head to a nightclub, meet the intriguing Ella and end up spending a surprising night in hospital.

Josh agrees to visit Ben in hospital before his brain surgery, but keeps it a secret from Arnold; Tom discovers he has chlamydia and goes to ridiculous lengths to try and treat Ella without losing her.

Geoffrey calls Josh and they go on a date; Arnold books himself into the same mental home as Mum; Dad and Mae have their first baby panic moment; Jenny discovers Tom is still having sex with Niamh.

Josh, Tom, Arnold and Claire discuss Arnold's plan to come out to his parents at his birthday party; Mae and Dad have their biggest fight yet; Mum and Hannah have a big night out.

While Arnold is away at a maths summit, Josh takes advantage of his new open relationship status by hooking up with a stranger; Tom challenges Josh and Claire to smash his piñata.

Josh is single and ready to mingle, but a string of dating disasters has him wondering if it's all worth it. Meanwhile, Hannah has taken up boxing, while Mum seems to have taken up fighting - with anyone about anything.

Tom and Ella make a nervous trip to the dentist; Josh and Claire have to deal with a decision that makes them realize they're growing up fast; Mum plots revenge when she learns Stuart is still seeing his wife.

A camping trip to celebrate Hannah's birthday goes pear-shaped. Josh and his friends face stormy weather, dampened spirits, a treasure hunt, a dead body and fireworks - both in the sky and in their tent.