The members of New Directions are back in action and take on their biggest assignment yet: the Beatles! As Will enlists the kids to pay homage to the classic song catalog from the Fab Four, Blaine and Kurt attempt to answer questions about their future together. Meanwhile, Rachel's New York ambitions take an unexpected turn.
Simon tries to convince Kelly Clarkson to record a jingle for a client.
Charlie invites Ellie (Brea Grant), an attractive grad-student, to observe a therapy session only to have to compete with Nolan for her affection. Meanwhile, Ed and Martin come up with a plan to scam the government by hosting a disabled war veteran in their house.
After five years, Mike Henry returns to the workplace, forcing him to learn to juggle his home, family and career again.
Mike confronts a noisy neighbor who develops a crush on him; Ian tries to court Eve's friend; Leigh is mistaken for a single mom.
It is the launch party for Waterloo Junk-tion and Rhiannon’s determined to bag herself a date. George attempts to sort things out with Princess but learns that it might be too late. Audrey finally works out that her new friend Moira isn't what she seems to be.
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.
All the world's superheroes are rendered powerless, except The Awesomes. Can Prock and his team figure out how to stop Malocchio before it's too late?
After the death of Liu Kang's fiancée, the sorcerer Shang Tsung approaches the martial artist and offers him revenge on all the criminals of Earthrealm... if Liu will fight for Outworld in the Mortal Kombat tournament.
The tournament begins as Raiden summons his allies, and Shang Tsung arrives with his.
Angry with Margaret for not taking her diabetes seriously, Bess sets up training sessions with newly qualified Brianna. Margaret reluctantly agrees, but is surprised at the outcome.
Sub Zero discovers too late that his childhood friend Hanzo holds him responsible for the death of his family and his village.
Richard France holds a workshop to try and help the Valco staff understand customer loyalty with a series of acronyms and training exercises.