Sam, Ben, and Sock must hunt an escaped soul that uses insects to kill the people living at an apartment complex. Also, Sam is crushed when Andi meets a new guy who encourages her to go back to school full-time and quit her job.
Patty offers Ellen her job back, however, Ellen declines but volunteers to keep helping Patty with the Frobisher case. Lila is back, and bringing more havoc into David and Ellen's lives. Patty uses the newly acquired evidence to blackmail Ray, and offers him an ultimatum.
George and The Man run into Steve at the local movie theater taking down signs for the old movies, which the manager lets him have. Steve tells George that he collects all of the posters which makes George want a collection of his own of sorts. When he sees a guy taking down a sign, he decides to collect various signs from around the city. So he goes around the city taking every sign from the park, zoo, and science museum. When he goes back out to look for more, he notices the park in chaos. Realizing that it is because the signs are gone, he decides to put them back. George puts back all of the signs but does not put them in their original places causing more chaos. The Man then tells George that each sign has a meaning and they are not just for decoration.
George is pretty mad at Hundley who will simply not let him play in the lobby and wishes Hundley could be more like him. One day though, he notices that Hundley is barking loudly and acting bouncy and playful, much to his wish! He then notices that Hundley seems to go back and forth between acting bouncy and playful, and acting like his normal self. Realizing that something is not normal about Hundley's split personality, he tries to figure out what is going on.
The house romance takes a turn that could ruin one of the teams. Meanwhile, as voted by viewers, the geeks are challenged to massage the ladies while the beauties are challenged with rocket science.
Lt. Colonel Mann joins Gibbs in an investigation of the murder of a Marine Captain who had access to highly classified information. Things get very personal for Gibbs when one of the witnesses in the case turns out to be one of his ex-wifes.
Leonard asks a woman out after he finds out that Penny is seeing someone.
Ted's new attitude attracts women in the present and one from his past. The rest of the gang pulls together to help him make the most of the situation.
Chuck needs the help of Morgan and the Nerd Herd to prove that he is ready to become the store's assistant manager. Sarah and John assign Chuck his first undercover spy mission to foil a terrorism plot.
Granddad, Huey, Riley and Jazmine must avoid guards after they sneak in to a theatre to watch Soul Plane 2: The Blackjacking.
After taking delivery of a package from The Company, Lincoln realizes that they are deadly serious. Michael's new break out plan relies on electricity. Haywire is back from the dead, haunting disoriented Mahone. Bellick and T-Bag get special attention from Lechero.
Emma Jean's Holland Burger Café (Victorville, Calif.) • The Rock Café (Stroud, Okla.) • Café on the Route (Baxter Springs, Kan.) Hop in for a ride down historic Route 66. Enjoy some homemade biscuits, German spaetzle, and pecan-crusted catfish.
Doug and Sullivan fight over a golf membership and Doug get some revenge. Nancy spends time with Valerie, who considers her an “insane stalker person”. Conrad and Silas spend time together. Dean is injured and hospitalized. Tara tries to get deeper into Nancy's business.
Horatio's son goes missing when a prison transport is attacked. Upon learning the identity of Kyle, he is targeted in order to get at Lt. Caine, who must find him before it is too late. Meanwhile, Ryan causes tension with his former colleagues when he is hired as an expert witness for the defense.
Joan runs away to Mexico with Aaron in attempts to keep him from leaving to Iraq. While in Mexico, Aaron realizes that he cannot run from the war and the two of them decide that they should get married before he departures. Meanwhile, Maya automatically assumes that Jabari has been using marijuana when she finds it in her home. Also, Lynn reaches another milestone in her music career, but she doesn't feel comfortable celebrating because of Joan and Aaron's problem.
Alan convinces Charlie that he needs to date more respectable women and sets him up with a judge. The two double date and their waitress happens to be one of Charlie’s ex-girlfriends. Charlie's date backfires the following morning, when he ends up in court in front of the judge.
Hank's comments on Karen's eating habits prompt her to join a spin class at the local gym, and she's shocked to find out who the teacher is. Lacey gets involved in a "Ladies of Dog River" charity calendar, but is shocked to find out just what she has to do to be "Miss April". Wanda buys a new phone for Corner Gas, but won't let anyone use it until it's fully charged, but then it goes missing.
After getting bullied Caruso stops bullying everyone else which upsets the balance at school. Julius tries to keep secret that he's been forced to take his vacation days.
Maria's dad Alan (Joseph Millson) has been turned to stone. The alien talisman is now in the possession of the Gorgon and her evil nuns, and they are preparing to open the portal to their world. Can Sarah Jane (Elisabeth Sladen) and her young friends free Alan from his stony state, prevent the nuns from unleashing more deadly aliens on the Earth, and avoid the Gorgon's petrifying gaze?