<P> In the season premiere "What Lies Ahead", walkers swarm the highway, and Sophia is lost in the woods after being chased by them . Carol casts the blame upon Rick for not staying with her as he finds her in the woods, chasing off the walkers who follow her but ultimately blames herself . In the episode "Cherokee Rose", Daryl Dixon (Norman Reedus) gives her a flower later on which inspires hope in her to keep strong and to believe in Sophia's survival . In the episode "Chupacabra", having been staying at the farm owned by Hershel Greene (Scott Wilson), she decides to cook dinner for Hershel and the rest of the group with Lori as a token of gratitude . During the dinner, she brings up a plate to Daryl and kisses him on the cheek, acknowledging how noble and caring he is (compared to her deceased husband). In the mid-season finale "Pretty Much Dead Already", Carol and Daryl begin to form a deeper bond, with her being concerned for his well - being . Glenn reveals to the group that Hershel's barn is full of walkers, and Sophia appears as one of the walkers in the barn . In the mid-season premiere "Nebraska", Carol refuses to attend Sophia's memorial service, saying that her daughter died a long time ago and the corpse at the farm was not Sophia . In the episode "Triggerfinger", Carol shows a conscious concern for Daryl's detachment from the group . She later lets him vent his frustration at her, as he mocks her for losing her family but soon apologizes and returns to the fold . Over time, Carol's meekness diminishes as she gains the self - confidence to stand up for herself . She grows tired of the arguments of the group, and refuses to choose the fate of their prisoner, Randall in the episode "Judge, Jury, Executioner ." In the finale "Beside the Dying Fire", the group are chased off the farm by walkers . Carol convinces the women to evacuate the farmhouse but is herself abandoned by Lori . Daryl rescues Carol on his motorcycle, and they eventually meet up with the remaining survivors . The slight blame she has cast upon Rick accumulates into outright questioning of his leadership . </P> <P> In the season premiere, "Seed", eight months pass and Carol has built self - confidence and has developed a proficiency with weapons . Carol has gotten closer to Lori since her pregnancy, and her trust in Rick has been regained . In the episode "Killer Within", T - Dog sacrifices himself to save Carol after they are separated when walkers get into the prison . The group believe her to be dead . In the episode "Hounded", Daryl rediscovers her in a solitary confinement cell, malnourished and weak but alive . He carries her off in his arms and in the next episode, "When the Dead Come Knocking", the group happily reunites with her; however, things once again take a sad turn when she realizes that Lori has died in childbirth . She and Rick tearfully mourn Lori's loss and Carol is seen taking care of Lori's child, Judith, while Daryl leaves for Woodbury . As Daryl tells Carol to keep safe, she responds saying, "Nine lives, remember?". In the episode "The Suicide King", Carol is sad about that Daryl leaving with his brother but understands his decision . In the episode "Home", Axel is shot in front of Carol's face by The Governor's men as they bond, causing her to use his body as a shield . In the episode "I Ain't a Judas", Daryl returns, pleasing Carol . Andrea also visits, and Carol instructs Andrea to stab The Governor in his sleep to end the conflict . In the episode "This Sorrowful Life", Merle has a brief conversation with Carol wherein he remarks that she has transformed from a "scared little mouse afraid of her own shadow" into a stronger person . She replies that she was not scared of her own shadow but that of her husband and further states that she is no longer afraid of anything . To prove the latter, she sternly admonishes Merle to "pick a side," regarding his previous loyalty to The Governor . In the season finale "Welcome to the Tombs", following Merle's death at the hands of The Governor, Carol praises him for his sacrifice, that he gave them a chance though Daryl remarked that Merle had never performed an altruistic deed in his life . Carol then helps defend the gate against walkers as Rick, Daryl, and Michonne drive out to carry the fight to Woodbury . She is seen beginning to cry upon realizing that Andrea has died at the end of the episode, and watches the remaining Woodbury residents enter their new home in the prison . </P> <P> In the season premiere, "30 Days Without an Accident", six months after the conflict with the Governor has ended, Carol begins secretly teaching the children of the prison how to use knives to defend themselves and not to have any sympathy for the walkers . Carl Grimes discovers the lessons are taking place, and she asks him not to tell his father . In the episode, "Infected", Carol begins caring for two girls, Lizzie (Brighton Sharbino) and Mika (Kyla Kenedy), after killing their father Ryan who was bitten by a walker . This makes Carol even more determined to keep those she cares about safe . In the episode "Isolation", when a new disease starts spreading in the prison, two people who are infected are killed--Karen (Melissa Ponzio) the Woodbury survivor and girlfriend of Tyreese (Chad L. Coleman), and prison newcomer David . Unknown to the other survivors, Carol killed them in their sleep and burned their bodies in the belief it would stop the infection from spreading . An enraged Tyreese finds the burned bodies and attacks Rick while Carol watches, and later demands that Rick find the killer . Despite the deaths of Karen and David, the infection continues to spread . Carol discovers Lizzie is ill, but reassures her that she will be fine . Tyreese asks Carol to look after his sister, Sasha (Sonequa Martin - Green), who is also ill, believing Carol is a very caring person, which upsets Carol even more . Later, she is shown recklessly pumping up water despite knowing walkers are nearby, and is forced to flee as Rick shoots them down to save her . Rick soon uncovers the truth and confronts Carol over the murders . In the episode, "Indifference", Rick and Carol go on a supply run together to gather medical supplies to help Hershel . Carol talks more about her past, revealing her late husband pushed her down the stairs on at least three occasions and she learned how to fix a dislocated arm because she was too afraid to go to the hospital . They discuss the murders of Karen and David and Carol explains that, at the time, she believed killing them would stop the spread of the infection, therefore saving the lives of everyone else in the prison . During the supply run, Rick sees how different Carol has become and ultimately decides that she cannot return to the prison . He sees her as a threat, but is also concerned that Tyreese will kill her when he finds out that she murdered Karen . Carol is forced to accept banishment, leaving everyone she cares about behind . </P> <P> In the episode "Inmates", Carol reappears unexpectedly, saving Lizzie, Mika, and Judith from a pair of Walkers in a forest . She returns the children to Tyreese and tells him that she saw the prison fall, and, after losing sight of him and the children, managed to catch up with them . Sensing that Tyreese does not know of her involvement in Karen's death, Carol makes up a story about how she did not return with Rick because she wanted to find more supplies for the group . Later, after taking the advice of a man who had been bitten on the side of the road, she follows Tyreese and the children as they to travel to a sanctuary named "Terminus ." In the episode "The Grove", Carol and her group take a break from following the train tracks to Terminus, and find a house in the middle of a pecan grove . Carol is concerned that Mika is too gentle to survive, and that Lizzie is confused about the nature of walkers, thinking that they are still people . She continues to teach Lizzie and Mika lessons of survival, despite the girls remaining adamant to surviving in their own methods . Carol and Tyreese later return from a hunting trip to find that Lizzie has killed Mika and was about to kill Judith, thinking that everyone would understand that Mika was just a changed person after reanimating as a walker . Viewing Lizzie as too dangerous to be around other people, Carol and Tyreese discuss Lizzie's fate, and Carol executes Lizzie by shooting her in the head . Afterward, Carol confesses to Tyreese her role in killing Karen and David . Tyreese is furious, but he forgives Carol for what she did, although he says he will not forget . After burying the two girls' bodies, Tyreese, Carol, and baby Judith restart their trek toward Terminus . </P>

When does carol come back in the walking dead