After a man is struck by a train, Allison's dream foreshadowing a similar murder assures her that it was a homicide. Meanwhile, Joe has a hard time dealing with his mother's diagnosis.

Tess acquires a Kryptonian box that once belonged to Lionel Luthor. When Clark accidentally activates the box, he's transported to a parallel universe where Lionel found Clark in the cornfields instead of the Kents. In this universe, Clark Luthor is a murderer and Lois is engaged to Oliver and both of them hate Clark. Clark must be careful not to tip off Lionel that he's not his son while trying to figure out how to get back to Earth where the monster Clark Luthor was transported in his place.

Megatron sets his sights on resurrecting the fallen Cybertronians with the use of his Dark Energon. Now Optimus Prime and the rest of the Autobots must fight back and protect the planet from destruction.

Mac and the team search for the killer of a department store manager who was found dead in a holiday display window.

Sam and Dean make a deal with Meg to find Crowley and force him to return Sam's soul, but the plan starts to fall apart when Castiel helps, and can't abide working with a demon.

Coming soon...

Senators Amidala, Organa, and Farr take the battefield to the Senate while trying to stop a bill that would create another batch of Clones to fight the never-ending war against the Separatists.

A ruthless Internal Affairs investigator re-opens a year-old case in hopes of putting an end to Dan's irregular police methods. His investigation leads to the release of a deadly gang, hell-bent on murdering the ones who put them away and forcing Jack and Dan to stop them before they succeed.

Coming Soon...

With Adam on lockdown at the Sanctuary, Magnus investigates his connection to Hollow Earth - and Druitt - while being forced to reveal dark secrets about the chaotic origins of the Five.

When a doorman at a New York City hotspot is murdered, Danny returns to investigate the nightclub scene he left behind years ago. Meanwhile, Frank makes a decision about an ex-partner's future.

A celebration of Joel's 300th episode

Louis C.K., Aron Ralston

The third round of the Lily of the Valley Conference is about to start. Much to his happiness, Barry's next match will be against Paul, a trainer he looks up too. As the battle begins Paul believes it will be an easy win, but Barry soon proves that he is no pushover. Which trainer will advance to the next round?

Bruce Forsyth and Tess Daly host a movie night special, as the six remaining stars try to put on Oscar-winning performances. The quarter finals have arrived, and the couples once again dance for judges' scores and viewer votes.

Will Arthur be able to save Camelot from the evil Morgana? Morgana, newly crowned as Queen of Camelot, begins a reign of terrible evil over the innocent citizens of the kingdom. Counting on Morgause and her immortal army at her command all hope seems lost for Uther, who is forced to witness how his kingdom crumble under the unimaginable cruelty of his own daughter. Meanwhile, on the outskirts of Camelot, Arthur recovers his strength and plans a counter attack with the help of a few loyals at his side: Gwaine, Lancelot, Elyan and Percival. However, Merlin is aware that not even a skilful warrior like Arthur can defeat an immortal foe without magic. Will he be able to reclaim the great sword Excalibur from the Lake of Avalon in time to save the lives of those he cares the most about?.

The remaining five finalists perform live for the ninth time as the competition reaches the semi final stage. Each act has to perform twice with tonight's themes being Club Classics and a Get Me To The Final song. After each act has performed the judges give their verdicts on what they have heard. All of the semi finalists put in a good performance and it is a hard week to call who will be going home. At the end of the show the phone lines are opened for tonight's public vote.

Ruth remains relentless in her quest to further her career and she continues to undermine Zoe by revealing that she is the doctor with the highest mortality rates in the department. Mike is brought into the casualty department after being beaten up by a local gang leader and his father is worried that his Olympic dreams could be over. Jeff is back in action following his reinstatement. Ruth decides to organise a morale-boosting trip to the races, but is disappointed when only one person puts their name down to go.