A pharmaceutical company comes under fire when its newly-marketed immune suppressing drug triggers a high incidence of congestive heart failure; David attempts to find a replacement for Wes; Bob suffers a seizure that triggers romantic memories of a girl named Nina.
The Doctor takes Donna back to Pompeii, on the day of the eruption of Mt. Vesuvius, and is faced with a great moral dilemma. Should they warn the residents of the impending disaster, or let history take its natural course?
The Clubhouse mail has arrived for all of the Clubhouse friends except Donald. It's up to the Clubhouse friends all make Donald feel better.
As Otto creates the Rhino as a new distraction for Spider-Man, Peter takes Aunt May's advice and asks Mary Jane Watson to the high school prom.
Optimus Prime and his band of Autobots are taken off the job when the Cybertron Elite Guard, led by Ultra Magnus, comes to Earth looking for the AllSpark.
Otis' favorite circus is coming to town, but the gang accidentally injures the main lead. Feeling guilty, Otis offers to take over and along with his friends, but Abby is too afraid to do her part because of an incident that happened long ago: She had dropped her partner when trying to catch him. Abby refuses to do the part because of being afraid to drop Otis. But without Abby, the show ends up being a disaster
The Cylons learn that the Final Five are in the Colonial fleet. Some of the Cylons want the Cavil model to stop lobotomizing the Raider ships. Starbuck desperately tries to convince the others that the fleet is going the wrong way in their search for Earth.
Don runs into Robin Brooks during an investigation concerning informants and a chess master.
Janice tries to convince Madge not to agree to a wed a man they have only known for five minutes. Meanwhile an arm-wrestling match organised by The Oracle and his mum turns into Fight Club, offering some a chance to settle old scores.
After graffiti is repeatedly painted on Melinda's shop doors, she seeks out the town blogger convinced he is the one causing the mischief in an attempt to expose her. Melinda is forced to encounter the dark side of Grandview in order to help the latest ghost cross-over.
While researching his family tree, SpongeBob finds that he is a distant relative of SpongeBuck, a sheriff from Bikini Bottom's past who helped save the citizens from the quickest whip draw in town, the evil Dead Eye Plankton.
Michael stages an elaborate plan to finally get Pam and Jim over to his and Jan's place for a dinner party. Jim gets trapped into it and agrees to go. Dwight overhears and wants his invitation, too. Michael says he only has six wine glasses and with Andy and Angela going too, there's not enough room for Dwight.
While investigating the murder of an Irish girl, Murdoch discovers a plot to kill a visiting British Prince.
Goldilocks is determined to prove that she didn't make the mess in the Three Bears' house!
"Crip or Die" exposes one of the most infamous and brutal street gangs- The Crips. The gang started as a rag-tag group of youth on LA's Eastside and quickly grew into a terrorizing force in South Central. Today, the Crips are the largest black gang in LA with over 10,000 members. Gang members give an inside look at the lifestyle called Crippin' where it is survive or die--kill or be killed.
CSI investigates the death of a toddler who was left in a cardboard box in a parking lot. A registered sex offender who is wrongly accused threatens Catherine after the real cause of death is identified.
Pratt and a new doctor on the scene disagree on how to teach the interns. Gates treats a young woman with serious heart problems. Abby heads to Croatia, and ponders whether and how to tell Luka about her unfortunate choices. Sam discovers that Julia has moved on in more ways than one.