Summer's boyfriend Andrew (Jordan Smith) sparks the chain of events when he goes through her History Wall project and spots Kate's kiss with Noah - before deciding to protect his cousin by deleting all of the footage and passing it off as an accident.
With her project plans ruined, Summer finds herself under more pressure than ever to do well in her last test. However, when school principal Michael Williams (Sandy Winton) catches her cheating, it seems like she has found herself in another big mess.
In a twist, though, stressed-out Michael collapses in the heat of the moment and can't remember anything about the Summer scandal once he comes round. What will Summer do next?
Here, Jordy Lucas - who plays Summer - chats to Digital Spy about the storyline.
How does Summer react when she discovers that Andrew has 'accidentally' deleted her History Wall footage?
"She isn't happy to say the least! This project means an awful lot to her and I think she is also surprised by how casual Andrew is about it - I think that upsets her more."
If Summer had seen the Kate footage, do you think she really would have made it public or would she have protected Kate?
"Summer always tries to do the right thing and I'm not sure she would have thought making it public would have been the right thing to do, so I'm leaning toward protecting Kate."
How would Summer feel if she knew that Andrew had deleted the footage on purpose?
"She'd be devastated, because she feels that Andrew always has her best interests at heart, as she does his."
"A line was definitely crossed when Kate kissed Noah - it's wrong on so many levels. However, Kate is Andrew's blood and I can certainly understand why he would do it to protect Kate. He probably should have tried to persuade her to come forward - I think that would have been the more appropriate thing to do."
Summer also decides to cheat on her English exam this week. Can you tell us what's going through her mind at this point?
"Oh, this is a very confused time for Summer. Losing the footage has put her project in jeopardy which accounts for a large portion of her marks, so she is really counting on doing well in the exam. She sees this as an option but I actually don't think she intended to go ahead with it initially."
How does she intend to carry out the cheating plan without getting caught?
"The footage thing has really derailed her studying for the exam, so she makes a very un-Summer move to photograph some of the verses she needs for the exam on her phone. It's not a good move! When she is taking the exam, she does get stuck on some questions and decides to go ahead, not thinking she would get caught."
"She has left the phone in the bathroom and asks Michael if she can use the bathroom during the exam and he has to accompany her. While she is checking her phone, Michael comes in to see why she is taking so long. The phone is on vibrate and starts to ring, so she is sprung! At this point, Michael is suffering from pains, he realises what Summer has done, confronts her and in the tussle to get the phone, he collapses."
Summer is quick to call for help for Michael, but how much does she tell the emergency services about what happened?
"Ironically, Summer uses her phone to call for help but she doesn't let on to anyone what really led up to Michael's collapse."
What goes through Summer's mind when Michael pulls through and doesn't remember her cheating?
"She is guilt ridden, petrified that he is going to remember what happened and starts having these funny dreams of him confronting her."
"It does from the start. She can't carry this secret around on her own, so she tells Chris and Andrew who have two different reactions which sort of makes it worse."
Andrew tells Summer to keep quiet about the whole thing. Is she likely to be swayed by his advice?
"Initially she is. Andrew can be very persuasive…"
Do you think Summer will actually make it to Journalism School?
"Summer is very determined, so I don't think she will give up on her dream. One way or another, she'll be doing what she loves and that's writing."
What do you hope 2012 has in store for Summer storyline-wise?
"I'd like her to have to make more adult decisions now that she has finished school, and of course I hope those aren't always the right ones because the chaos is fun to play."
Do you think Summer could prove to be any help in reuniting Susan and Karl in the future?
"I'm not sure about reuniting them because she probably doesn't have those life skills to impart the advice they need, however I think she will be great support to Susan who she has an affinity with through the journalism and of course Lyn."
Can you give us any extra teasers on where things are heading next for Summer?
"2012 will be when Summer really comes into her own and let's just say that at times she may be single when this happens. I can't say any more but it's going to be interesting!"
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Neighbours airs weekdays at 1.45pm and 5.30pm on Channel 5 in the UK and weekdays at 6.30pm on Eleven in Australia.