A beautiful synchronized swimmer in an elaborate mermaid costume washes ashore dead, and the clues lead Jim to a bittersweet love triangle and a hip hop mogul trying to turn a mermaid show into multimillion-dollar phenomenon. On the home front, Callie hits a wall in her job search, and Jim realizes the best opportunity for her is the one in Atlanta she passed up to be with him.
A comet travels to the sun from the outer reaches of the solar system.
Cathy tries scuba diving in an effort to maximize the fun on her Puerto Rico vacation; Paul, reeling from the news about Joy, tries to keep it together during a speaking engagement. Later, Sean decides to take a respite from dating after undergoing yet another breakup.
CeCe and Rocky throw a viewing party to watch "Shake It Up, Chicago's" feature story on a national TV show, but are shocked when the show makes ridiculous claims that CeCe has a crush on Gunther and Rocky is a major diva.
Nick Crane confronts the terrifying power of the tides head-on as he paddles for dear life in a kayak to conquer the fearsome, tidal rapids that swirl off the island of Anglesey.
Alex drives on the Arctic Ocean, to the northernmost Canadian village accessible by ice road. Hugh and Rick face melting ice in a desperate search for missing trailers. In Alaska, a massive oil rig move continues as Jack struggles to mentor impatient young driver, Austin Wheeler. And, it's judgment day for the Dalton rookies as both Darrell and Porkchop meet with the boss to see if they pass their training runs.
Riley gives romance a try with the very charming and ever persistent Dr. Mark. But what starts as an elegant date at a country club event, ends with her past coming back, turning Riley's world upside-down. Meanwhile, Dee Ann lands in hot water when she gets involved with a high-powered client. And Linette and Lacey face their first day of the "Reign of Taylor" at the Curl Up & Dry.
Things get out of control in the emergency room due to the recent firings and an overflow of patients who have been diverted from another hospital, causing Cruz to suffer a pulmonary episode and Jackie to step in. At home, a rebellious Grace refuses to go to class unless Jackie transfers her to public school.
Logan, Mariah, Madison, and Hunter head back to Utah to visit their family and friends, but more importantly, to visit the happy home they left behind. How will they feel about being back and will they have any resentment or regrets since leaving?
The Brown brothers are coming to town! Kody ditches his four wives for his three brothers as they hit up the city of sin. They're cruising on motorcycles, hanging out at a biker bar, and shooting guns.
Dr. Jin needs to find his own residence. It is a difficult decision, considering that Dr. Jin saved her son, but a marriage in a position of power usurps that.
Feeling resentful of an old classmate's success and unable to make rent, Hannah is forced to take a job at a café. Marnie has trouble handling Hannah's emotional and financial needs. Jessa runs into her old boss. Shoshanna meets her online match.
Young mother Rhonda Boggs is stabbed to death in her kitchen and the only witness is her 2-year-old daughter. What the child witnessed aids the cops to catch the killer's trail.
Roger seeks to expand his affair with Megan's mother. Pete has a "last" encounter with Beth with lasting repercussions. Megan struggles to find acting work and asks for Don's help getting an audition. Peggy still seeks Don's approval.
Kiera and Carlos investigate a series of mysterious murders in which victims have been drained of endocrine fluid only to discover that the crimes were committed by Liber8 in an effort to save Travis, their leader. Kellog tries to make a truce with Kiera by delivering her a gift, one that could cost her and Carlos their lives and will lead to Kellog’s expulsion from Liber8.
Longmire and his team investigate the death of an exotic dancer with possible Amish roots. Cady's new relationship stirs up controversy.
It's Easter and Alexander makes plans for a celebration to end his pious fast even as Della Rovere's assassin ascends to the position of the Pope's taster. Lucrezia's lover asks for her hand in marriage but her father dismisses him and his request. Juan's wild behavior threatens the life of Lucrezia's child, forcing Cesare to make a chilling decision about his brother.