Donna finds her mother's diary.
Karl asks Lyn to leave the hospital because she keeps interfering with patient care.
Lyn on the phone to Oscar, telling him she wishes she could see him.
Lucas offering to have lunch with Toadie as a final way of saying sorry.
Sonya warning Toadie that Lucas will play dirty.
Lucas asking a sleepy Toadie what really happened with Steph.
Libby comes over with some breakfast rolls, and sees Toadie asleep on the sofa. She wafts an egg and bacon sarnie in front of his face before shaking his head to keep him awake. She laughs at his stupidness, before inviting Steph over to theirs for Earth Hour later.
Karl will be singing. Steph politely declines.
Libby leaves and Steph asks Toadie what happened last night - he remembers pool, karaoke, eating souvlaki and nothing else. He didn't blab, he's sure about that. He does, however, need a shower.
Toadie's getting a triple espresso (not 'expresso', as Lynnie likes to call it) when Karl appears and asks Toadie if he's coming over for Earth Hour. Toadie admits to the Ks that he had a big night out, hence why he looks dreadful. He's still waking up.
Lyn serves breakfast to the Ks - and Karl's toast is burnt. Karl asks for butter, but Lyn - flicking the paper over whilst reading it - tells him she's short- staffed and will have to serve himself. Susan glares at Karl: what's going on?
KARL: We might have had a slight difference of opinion at the hospital.
Lyn BASHES something very VERY loudly.
SUSAN: How slight?
KARL: Well, I kind of...sort of...banned her.
Despairing, Susan drops her head into her hand.
Lucas is picking up mail from the mailbox at number 22 when Libby approaches, asking if he had a good night. She wonders if his change of heart over Toadie was before or after he came onto Steph at the garage. Lucas says he thought Steph was still into him, but it turns out she's not, and he got a good slap in the ego.
Toadie approaches with coffee and dark glasses, and he and Lucas admit they're glad they talked. Toadie can't remember what about, so Lucas plays him: how could he forget what Toadie said? After all, Toadie gets very emotional when he's tired. Lucas then breaks the tension by saying that Toadie only said that Essendon would win the AFL final.
Zeke, Donna, Kate and Declan sit at the table staring at Cass's diary. After what feels like five years of debate on whether or not to open it, and whether or not the fact that it's locked is a sign, Lyn comes over, grabs it, and bashes it with a meat tenderiser.
Diary open. Job done.
Donna still doesn't know whether or not to read it - and Zeke reminds her that they sat on a stinky bus for three hours to get this. Donna doesn't want Cass in her head again, so Zeke suggests he read it for her - and he'll miss out all the bad stuff. She agrees.
Zeke giggles inappropriately as he reads Cass' diary - she's already had three boyfriends five pages in. Susan asks the other kids (who are studying) if they want juice - but they've run out. So she unsubtly suggests that Karl go to the store and get some more.
KARL: If this is an attempt to get me and Lyn talking again, it's failed.
Susan's annoyed. Kate and Declan are complaining about their work, and Kate reminds Declan that he'll have to turn his laptop off, later, for Earth Hour. Zeke asks the guys if anyone knows a Lee Nixon - and Karl and Declan do. He was a midfielder for Essendon. Zeke recounts that Cass knew him - she's written about him in her diary.
Reading the diary together, they all laugh, but Donna takes it from them: it's her mother's private life and they shouldn't be laughing. She goes home to read it alone whilst everyone blames Karl for laughing inappropriately.
Donna sits on the sofa with Cat, who washes herself. She reads the diary in her head - Donna, not Cat - and gets to the point where Cass finds out she's pregnant. Donna reads how Cass describes hating her baby already; it's ruining her life. Devastated, Donna closes it. She can't read anymore, and throws the diary away.
Donna is picking up lots of food, and sees Kate, Declan and Zeke at a table. She invites them to hers for Earth Hour, and tells them that she skimmed her mum's diary, which only confirmed that Cass didn't want her. She promises them it's no big deal, and makes a quick exit.
The gang wonder what they can do for her to make things easier.
Donna is getting candles ready for Earth Hour when her friends turn up dressed in 90s get- up, including a power- dress that Susan wore in the 80s. Apparently. Donna wonders what on earth they're doing, and they explain that they're going to have a pantomime party for Earth Hour, and re- enact Cass' diary to make it fun for Donna. Appreciative, Donna agrees.
Lyn has come over with candles that Susan apparently desperately needs for Earth Hour. Karl comes out the bedroom and Susan suggests they all have some tea.
LYN: I wouldn't want to impose. I'll just leave these here, eh.
KARL: Why don't you put them in the cupboard with the rest of the candles?
Susan shoots daggers at him. She concedes that she wants her husband and friend to be on speaking terms. Standing between them she attempts to mediate...
LYN: I was providing a service for the patients free of charge and he rejected it.
KARL: She interfered with patient care.
SUSAN: Okay. The hospital needs doctors and volunteers. Can you at least agree on that?
LYN: I suppose.
SUSAN: (brightly) Okay! Now we're getting somewhere! Karl, do you admit that banning Lyn from the hospital might have been an overreaction?
SUSAN: Okay! And Lyn, do you think that contradicting medical advice - even though it was well- intentioned - might not have been the best move?
LYN: Well, when you put it like that...
SUSAN: Okay! Yes! Great! You see, now, this is where you apologise!
KARL: Fine. I'm sorry.
LYN: I'm sorry too. I'm sorry that I ever got involved.
KARL: And I'm sorry you couldn't let the doctors do their job.
LYN: Well maybe if you'd done a better job...
KARL: Well maybe if you'd gone to medical school...
LYN: Arrogant quack! (she storms off)
KARL: I can still diagnose a pain in the backside when I see one!
Horrified, and berating her husband, Susan rushes out after Lyn.
Outside number 28 Susan is still convinced that she can get Lyn back into the hospital. She also insightfully points out that she knows Lyn misses Oscar, and now that Steph and Charlie are going, things must be pretty hard for her. Lyn concedes that she likes looking after people, but she and Steph are spending Earth Hour together so that will be nice.
At that moment, Steph, Toadie and Libby arrive, and Steph apologises to her mum - she's taking Charlie and Ben to the candlelight storytime event. She invites Lyn to go with them, but Lyn says she has other things to do before rushing off.
Lucas sits at the table, hesitating about whether or not to call Sonya. He doesn't. He's interrupted by the gang who are getting ready for their pantomime extravaganza. Whilst Kate reads the diary, the others act it out. Kate eventually gets to a character called Mike - yet another boyfriend of Cass. It turns out that Cass went to uni and had a professor she was in love with - called Nick. Could this be Donna's dad?
Cut to later, and Donna is convinced that this is her father - and he's an academic! They want to google him, but it's Earth Hour and she has to wait. Lucas comes down the stairs on his phone, only to be berated by Zeke. Lucas is unimpressed.
Declan wonders if Lee Nixon could be her dad, too - Nick / Nixon?
DONNA: That would be like calling you 'Nape'.
DECLAN: I'm just saying, you know, we shouldn't rule it out!
DONNA: Guys, do I look like a footballer's daughter?
DECLAN: You did date Ringo...he's a footballer.
DECLAN: Girls sometimes date guys that are like their dad.
But Donna's convinced - Lee Nixon is not her dad. Lucas overhears: what's this about Saint Nick? That was his nickname, apparently, and Donna has to admit that maybe it's not as clear cut as she thought... Donna wants Kate to hurry to the end, but Kate can't - there's something Donna needs to know, first.
Over at the Kennedys Susan, Karl, Lib and Toadie are playing board games. Lib and Karl are thrashing their rivals.
Whilst getting more drinks from the kitchen, Toadie and Libby talk about Lucas, and Toadie admits that he still doesn't quite trust him, although he's not sure why. Lyn comes over with Steph who finally agreed to spend Earth Hour with her mum, and Karl apologises to Lyn, inviting her back to the hospital. But Lyn's not available - she's going to Bendigo to visit Oscar. Oh, and she's going to bring him back with her.
She hasn't yet asked Joe, so what's the betting that this isn't going to work out so well?
Donna is reading some more of her mum's diary, surrounded by her friends. It turns out that Cass dropped out of uni to bring up Donna, and she really did love her after all. Zeke jumps onto the laptop to investigate more about Donna's possible dads, and in her exuberance to join him, Donna knocks over a candle onto the diary...
Cut to moments later where they're on the net, still in panto dress. Kate can smell burning, and they turn back to see the diary on fire. Donna puts it out with some juice, but realises that it's ruined, and she'll never know who her father is.