Denny attends the funeral of Ethan MacGuire. At the end of the service, his sister-in-law Hannah Wilson approaches Denny to ask who she is, but Denny is defensive and she leaves. Hannah later apologises and Denny tells her she is Ethan's daughter. Denny stays at the local caravan park and asks Hannah and Ethan's brother
Zac (
Charlie Clausen) if she can meet her half siblings Evelyn and Oscar. Zac finds a picture of Denny among Ethan's possessions, and she realises that Ethan knew she existed. The twins initially refuse to meet Denny, but Oscar changes his mind. Evelyn accuses Denny of lying, but when Denny plans to leave the Bay, she comes to talk to Denny and they bond. Denny eventually moves into The Farmhouse with her family, and she begins working at Alf Stewart's bait shop. Chris Harrington flirts with Denny and she agrees to go on a date with him. After a rocky start, Denny and Chris begin dating. However, Chris is shocked at the extent of Denny's feelings for him and they break up. Denny becomes attracted to Casey Braxton, but she reconciles with Chris when he admits he is ready to commit to her. Casey and Denny kiss and Chris breaks up with her. Denny then begins a relationship with Casey. Denny develops a bitterness towards Andy Barrett when Hannah believes his drugs were Zac's, causing him to move out. Casey supports Andy through his troubles putting strain on their relationship. Chris asks Denny to spend time with him as friends, but he misreads the situation and kisses her. Andy is threatened by drug dealers, putting Denny and her family at risk.
Cody Dalton (Aaron Glenane) and his men later threaten Casey and Denny at the gym. She manages to text Casey's brother Brax, but Cody catches her and attempts to hurt her. Cody and his men leave, but they later kidnap Evelyn and Josh Barrett. Denny and Evelyn try to help Casey and Josh bond after they learn they are half-brothers. When Denny tells Casey about missing her school formal, he organises a romantic dinner at Angelo's. Just as Denny and Casey are set to leave for a romantic getaway, Casey goes to help Andy rescue a kidnapped Josh.
Kyle Braxton (
Nic Westaway) later informs Denny that Casey is dead, after being shot. Denny attends his funeral alone and later collapses from dehydration. She continues to struggle with her grief and tries to avoid going to Angelo's and beach. Brax gives Denny an engagement ring that he found in Casey's bag. Denny supports her siblings and friends through their problems, and accompanies
Sasha Bezmel (
Demi Harman) on a university open day. When Andy asks her about Hannah, Denny tells him that she is not interested in him anymore. Hannah berates her for lying to Andy and Denny reminds her of everything Andy had done to their family. Denny meets Martin "Ash" Ashford and is attracted to him. Despite warning Ash off, Brax tells Denny to move on when she is ready. Denny decides to join a coach party going to
Phoebe Nicholson's (
Isabella Giovinazzo) record launch in the city. The coach crashes, but Denny is not injured. Denny feels ready to move on with Ash and kisses him. They begin dating, but Denny breaks up with Ash when she learns that he lied to her about going after Kyle, who was carrying out a drugs deal. After speaking with Ash's sister
Billie (Tessa De Josselin), Denny gives her relationship with Ash a second chance. A few weeks later, Ash breaks up with Denny in order to protect her, after agreeing to help Brax escape jail. Denny ask Ash to consider a casual relationship, but is hurt when she sees him and Phoebe kissing. The girls put their differences aside when Phoebe moves into the Farmhouse, along with
Katarina Chapman (
Pia Miller). Denny discovers a note meant for Ricky and learns that Brax is still alive, following his apparent death during a failed prison escape. Denny confronts Ash and is determined to tell Ricky, but she later changes her mind. Denny is introduced to James Edmunds and believes she has met him before. She later realises that she saw him at the university open day with his daughter. James tells her she is mistaken and the girl was a friend's daughter. Shortly after the first anniversary of Casey's death, Denny decides to travel around Europe like they had planned. Kat initially agrees to go with her, but later changes her mind. On her last day in the Bay, Denny says goodbye to her family and friends. She stops by Charlotte King's flat to ask her cousin
Hunter (Scott Lee) if he was interested in taking over her job at the bait shop. Denny notices the stolen safe from the Diner and she and Charlotte fight over it. Charlotte pushes Denny, causing her to fall back and hit her head against the corner of an armchair, killing her instantly. Charlotte later buries Denny's body in the bush and her guilt causes her to see visions of Denny. A couple of months later, backpackers find Denny's body and her funeral is held in the city weeks later. ==Reception==