A musically-talented teenager returns to her native Buenos Aires after living in Europe.
The soldiers are back on leave, which means Cecil, George and Bert finally have some other men to talk to.
This episode presents the unlikely friendship of Hadiqa and Safiyyah. As headteacher Mr Mitchell says, these are the last two children that you'd expect to be best mates. Irrepressibly chatty Safiyyah punctuates every sentence with 'innit'. She dreams of becoming an air hostess, while gifted student Hadiqa has her sights set on becoming prime minister. As pastoral year leader Mrs Crowther knows only too well, close friendships mean everything when you're a teenager. But as exams approach, a crisis in Hadiqa and Safiyyah's friendship threatens to derail the girls academically and cause major upset.
Thomas Shelby plans to go to Cheltenham races in order to get closer to Billy Kimber. Knowing the gangster's appetite for beautiful women, Thomas invites Grace to accompany him. Meanwhile some IRA sympathisers approach Thomas with an offer to buy the stolen guns.
The Grey Sloan Memorial Hospital doctors are faced with the devastation left by the storm. A giant mudslide in Seattle injures a group of first responders and citizens, causing the already short handed ER to spring into action. Meanwhile, Meredith is faced with a tough decision that will affect the life of a loved one, Callie is rocked by the reality of Arizona’s infidelity, and Richard’s life is in extreme danger.
Kitana questions everything she knows after she discovers her true father. However, Shao Khan orders her and her sister to the tournament to compete for Outworld, and they encounter Johnny Cage.
Leonard and Sheldon's friendship is tested; Howard's latest foray into helping his mother has some disastrous side effects.
Kitana must choose who she will serve when Mileena fights Johnny Cage to the death.
Customs find crystal meth in the luggage of a passenger from Ghana and a pigeon delays an Emirates flight at Manchester.
Charlie's 25-year-old daughter arrives at the beach house, hoping to get to know her family.
With Leonard away, Sheldon and Penny spend quality time together sharing intimate secrets. Also, Wolowitz helps Raj get over his ex-girlfriend.
Leslie wins an award from an international Women in Government organization, and travels to London with Ben, Andy, April and Ron to accept it.
As Raiden informs the Earthrealm warriors what to expect, Kenshi remembers his battle for the Sword of Sento against the demon Ermac.
In a karaoke bar in Macau, two old friends renew their acquaintance... even though one doesn't want to.
Callie makes a decision about her relationship; the doctors receive devastating news.
In the first fight of the Mortal Kombat tournament, Kenshi battles his old foe Ermac to the death.
Sherlock is called to London to revisit an old case, where he is forced to face his older brother, Mycroft. Although the siblings suffered a drastic falling-out a few years earlier, Mycroft allows Sherlock and Joan to stay in his new home, 221B Baker Street. With Joan in the middle, the brothers are forced to confront their very complicated history.
In Feudal Japan, Hanzo and Bi Han try to settle the age-old feud between their two clans, despite the efforts of Bi Han's resentful brother Kuai Lang.