Mona and Dee Dee are half-sisters with the same father who didn't really know each other when they were little and are complete opposites, but as adults they live in the same apartment building and at least try to bond.
Bierko escapes from the transport taking him to Division and uses his last canister of nerve gas for a surprise strike. Jack is forced to work with Henderson to find Bierko, but Henderson wants something in return. Logan takes drastic steps to deal with Aaron when he won't go along with the cover-up.
Mia comes back to town with her dance troupe and invites Charlie to her performance. At first, he decides not to go and tries to convince Alan that he no longer has feelings for her. He goes to the see the performance and Mia explains that she wants some of Charlies sperm. Charlie responds by asking Mia for something.
Christine objects when Richard and new Christine want to take Ritchie to a Rolling Stones concert. Fearing that Ritchie is too young to be exposed to sex, drugs and rock and roll vices on display at a Rolling Stones concert, Christine initially forbids it. Eventually, she relents but immediately regrets her decision and, in a panic, goes to the venue with Matthew to see if she can sneak into the concert in order to keep tabs on Ritchie.
This episode is the second part of a two-hour season finale. Richard tries to get information from Addison about a family member's condition. Callie and George have a talk about his feelings. Meredith and Derek have a talk about Doc.
As the escape is in progress, Warden Pope and Captain Bellick begin a search to detain the escapees. Michael and co. have to reach the aircraft fast as the police is hot on their heels. Veronica discovers a major piece of evidence that could prove Lincoln's innocence. The Vice President is worried about losing her authority.
Ted tries to keep Robin from going on a camping trip so that she can spend time with him. Barney enlists the help of an old flame to perform a rain dance. At the same time Marshall finds out about Lily's interview for the fellowship in San Francisco.
Denny needs a heart or else. Izzie and George go crazy trying to get him one. Derek has the life of a friend in his hands as he operates on Burke who has been shot. Burke cannot operate on Denny after Denny's heart stopped and now Denny is in a dire condition. Cristina gets put in charge of the ER and she is worried about Burke.
It's Mr. and Mrs. Read's anniversary, and Arthur and D.W. want to make it a special one. On the way to a romantic restaurant though, a sudden disaster ruins everything - or is there a chance to make it the best anniversary ever?
Doug befriends a driver from one of IPS' competitors, but eventually discovers it's just a ruse to make him the butt of a joke.
In this Nick Jr. television show, a pink-haired girl named Stephanie moves to LazyTown with her uncle (the mayor of LazyTown), where she tries to teach its extremely lazy residents that physical activity is beneficial.
A young woman insists that the suspicious death of a local librarian was because of witchcraft, and the team are drawn into the world of magic and the supernatural. A series of strange events occur, and they are put under increasing pressure. The squad become convinced that the supernatural exists and struggle to remain cynical.
Lucky, Luanne's good-for-nothing boyfriend, won't marry her until he passes his ged test; when he asks Peggy to tutor him, she schemes to end their relationship by teaching him all the wrong answers.
When burglars break into the house, the Griffins take cover in the attic, where Peter tells them about their family history.
Reaching the end of her rope, Bree checks herself into the Fairview psychiatric hospital. Lynette suspects that Tom is cheating on her, so she follows him to Atlantic City. Susan must start over. Felicia Tilman has more in store for Paul Young, resulting in their war reaching its final battle. Gaby and Carlos get Xiao-Mei pregnant.
Working through their checklists of things to do before summer ends, Lisa gets the family to go a museum. At the Springfield Museum of Natural History there is an exhibit Lisa is excited to see on Women’s History turns into an exhibit on the history of weapons, which excites Homer and Bart. When Flanders sees the exhibit of evolution and another that mocks creationism, he raises an alarm. Reverend Lovejoy gets Skinner to have creationism taught in school. Lisa is the only one who holds onto the scientific theory. She brings the topic up at the town meeting and the town votes to teach only one theory, creationism. Lisa decides to hold her own class on evolution, until she is arrested. The ACLU gives her a lawyer who is up against a slick Southern lawyer, but ultimately it’s a family member that is a key to her defense.
George and Derek work together, Denny still doesn't have a heart, and Meredith gets paired with Callie. A 12-week pregnant girl dies in the O.R. and her parents try to keep the baby alive. This causes tension between Derek and Addison. One doctor's overreaction unites two bickering patients. Finn is still treating Doc for medical problems.
Malcolm struggles with his speech when he's elected valedictorian of his graduating class at school. However, Lois refuses to listen to any of his complaints and reveals that she wants him to become President of the United States. Meanwhile, Reese does everything he can to get a permanent job as a high school janitor, which includes creating the most disgusting mess ever. In the meantime, Hal has problems with Malcolm's Harvard tuition, while Francis finally gets a real - job that he actually enjoys. Also returning for the family celebrations is Grandma Ida, as they all say goodbye to Malcolm when he leaves for college.