Carly pretends to be very brainy to score points with her new boyfriend. Meanwhile, T-Bo needs to find a new home after he's evicted from the Groovy Smoothie.

The Autobots find out that Dark Energon is the thing responsible for the natural disaster epidemic of Earth.

Melissa McCarthy hosts. Music guest: Lady Antebellum.

Black Aggie strikes up a romance with Greg "the Gunman" Gaffney and gives-up prostitution. But she's still dirty on Nellie for putting her out of work, so she fronts her with a cut-throat razor. Frank Green intervenes and gives Aggie thrice as many cuts and bruises than she started out with.

Birgitte Nyborg must appoint a new EU-commissioner and her old mentor, Sejrandoslash;, is the obvious candidate. Seeing it as a ploy to get rid of him, Sejrandoslash; refuses Birgitte's offer, which leads to a power play with serious consequences. Meanwhile, Kasper prepares to move in with his girlfriend, Lotte, but is haunted by his history with Katrine. Katrine and Hanne have grown closer, united by daily battles with their boss at Ekspres: Michael Laugesen.

The four judges reveal to the eight hopefuls in their section competition if they have made it through to the live finals or not. Dermot is on hand to congratulate those who have made it through and commiserate with those who have missed out.

Dimitri tries to get close to an anarchist suspected of plotting to use a dirty bomb. Ruth is offered a position as security advisor to the Home Secretary. Harry suspects that the Americans may be behind the compromising of MI5 assets and the attempted assassination of the Russian foreign minister.

The household are getting ready to become a convalescent home for wounded officers and Isobel is driving Cora mad. O'Brien wants to make sure that Cora is recognised as the boss of Downton and suggests she needs a friend in Thomas.

When Tim reveals to the family that Shane is his son it throws everybody for a loop and threatens to ruin the traditional Bartlett-Fleming-Morris naming ceremony for Lou's baby girl.