After a violent attack on someone very close to Anna, she delivers a message that the Vs don't feel safe and will be leaving, while she also gives a list of possible Fifth Column members to Chad hoping he'll investigate to help in finding them. Meanwhile, Erica and the team try to track down a scientist who may have created a weapon that the Visitors are afraid of.
Adrianna's new romance with pop star Javier continues to blossom, while Navid continues to work up enough courage to tell her how he feels. Jen has taken control of Naomi's finances and puts her on a tight budget, resulting in an instant meltdown by Naomi. Without her credit cards, Naomi is too distracted to realize Liam is in need of support to deal with the departure of his father, so he turns to Annie for comfort. Despite Spence's suggestion, Teddy refuses to end his relationship with Silver, and the two decide to spend the night together. Ivy invites Dixon to spend the summer in Australia with her and Laurel, but the idea doesn't go over well with his parents. Harry and Debbie's problems escalate when she finds out that Harry has been hiding Dixon's gambling issues from her. Meanwhile, Jasper returns to resolve things with Annie.
Jacob and the Man in Black are revealed to be twin brothers. They are raised by a mysterious woman who is charged with protecting the island. As revenge for the murder of their adoptive mother (who killed their real mother), Jacob throws his brother into the source of electromagnetism after being made the island's guardian, which transforms the Man in Black into the smoke monster.
Murdoch is called upon to investigate an exceedingly strange murder. The deceased was found inside a room locked from within with no other entrance. But there's more to the case than that – the victim appears to have exploded and burned, yet there is no trace of an explosion or fire. Before Murdoch can proceed with his investigation, the case takes a bizarre turn when old friend and world-renowned inventor Nikola Tesla appears, announcing cryptically that he is "too late."
Raylan has a few drinks and gets himself beaten up, after being suspended as a Marshall. He pulls himself together and decides to jeopardise his career further by going after the thugs who have been harassing his ex-wife's new husband.
A gunman begins murdering uniformed police officers, prompting the detective to taunt the killer on TV in the hope of inspiring him to turn his anger on him and come out into the open. To his horror, Luther also learns that Alice Morgan has been investigating his past - and is threatening to tell Zoe what she has discovered.
While the firm takes on a case involving a divorce settlement for the wife of a musician who is in a coma, Alicia reluctantly considers a bold move to make sure that Lockhart and Gardner choose her over Cary.
The legendary Ford Sierra Cosworth looks like a family car but goes like a racecar with a motorsport-tuned turbo engine. To find one of these desirable classics at less than £5000 is difficult… but Mike has some clever ideas where to find a car.
The team tries to track down a serial killer, while Abby heads south of the border to give a speech with McGee in tow.
When a sore throat affects Rachel's singing voice, she goes into panic mode. Meanwhile, Kurt tries to change his persona to impress his father, and Puck makes a strategic move to elevate his social status.
Detectives Nichols and Stevens investigate a nurse and the men who love her while looking into the death of a woman who was treated in the emergency room shortly before she was murdered.
Lupo and Bernard uncover a possible conspiracy to kill off wealthy cancer patients, so their inheritors don't have to pay an estate tax. However, legal roadblocks make the case difficult to prosecute.
After a heated chat, Natsu and Gajeel share a dragon-related revelation. The triumphant wizards of Fairy Tail get right to work on a new guild headquarters. When Lucy’s friends pay her apartment a visit, she’s nowhere to be found!
Jacqueline's daughter Ashley's behaviour continues to cause trouble for her mum. Meanwhile, Caroline does her best to stay out of her daughter's relationship problems, Teresa and Danielle's daughters are both invited to model in NYC Fashion Week, and Danielle extends an olive branch to her former friends to celebrate Christine's success.
K'nuckles' wish that everyone in Stormalong would disappear comes true, but he soon begins to regret his wish.
Love It or List It contractor Eddy and his wife, Martine, bought their home two years ago with plans to renovate. But Eddy struggles to manage his time between work on the show and work at home.
Coop arranges a date for Georgia and Eddie while Jackie's daughter Grace starts therapy.
Anya and Sav plan on going to the formal together, but when Sav's parents introduce him to his arranged marriage, everything changes.