Smallville - 10x19 - Dominion

Episode Summary : Tess determines that a Phantom Zone prisoner has learned of the way to escape, and Clark resolves to investigate by going there. Oliver tricks Clark into taking him along, and they discover that the Zoners have a new leader: Zod. Meanwhile, Lois learns that Tess is aware of one of Clark's secrets and chose not to confide in her.

[Runtime : ~42'] - [Orig. Air Date: 29 Apr 2011]

Smallville - 10x18 - Booster

Episode Summary : While Lois advises Clark on how to maintain a low profile, a new hero, Booster Gold, travels from the future to present-day Metropolis to become a media darling as a superhero.

[Runtime : ~42'] - [Orig. Air Date: 22 Apr 2011]

Smallville - 10x17 - Kent

Episode Summary : The Earth-2 Clark Luthor sends Clark Kent to that world, where he meets the alternate Jonathan Kent. While Lois turns to Emil for help to recover her husband-to-be, Clark Luthor seeks out Tess and demands her obedience.

[Runtime : ~42'] - [Orig. Air Date: 15 Apr 2011]

Smallville - 10x16 - Scion

Episode Summary : Lois and Clark are shocked after they receive a gift from Tess. Meanwhile, Lionel and Tess face off for control of LuthorCorp.

[Runtime : ~42'] - [Orig. Air Date: 04 Mar 2011]

Smallville - 10x15 - Fortune

Episode Summary : Due to a gift from Zatanna, Lois and Clark lose their memories of their respective bachelorette/bachelor parties. As they trace their steps, Clark realizes he may have robbed an armored car, and Lois discovers she stole memory from an eccentric casino owner.

[Runtime : ~42'] - [Orig. Air Date: 25 Feb 2011]

Smallville - 10x14 - Masquerade

Episode Summary : Chloe and Oliver are mistaken for FBI agents investigating Desaad's recent string of murders and the pair are kidnapped by Desaad's minions. Desaad tries to infect Chloe with the darkness. Meanwhile, Lois tells Clark he needs to be more careful with his identity and suggests a disguise.

[Runtime : ~42'] - [Orig. Air Date: 18 Feb 2011]

Smallville - 10x13 - Beacon

Episode Summary : Clark is surprised to see Martha on the news speaking at a pro-vigilante rally. However, surprise quickly turns to horror when he and Lois watch as Martha gets shot on national television. Meanwhile, Lionel reveals himself to the world and reclaims LuthorCorp from Tess and Oliver.

[Runtime : ~42'] - [Orig. Air Date: 11 Feb 2011]

Smallville - 10x12 - Collateral

Episode Summary : In the aftermath of Hawkman's funeral, the heroes are captured and released... and Black Canary believes that Chloe Sullivan is responsible. Clark and Oliver disagree on whether their friend and lover, respectively, is a traitor.

[Runtime : ~42'] - [Orig. Air Date: 04 Feb 2011]

Smallville - 10x11 - Icarus

Episode Summary : The VRA is in full effect and things take an unfortunate turn of events after the Green Arrow tries to stop a mugging but is attacked by citizens for being a super hero. Clark discovers that the civilians who attacked Oliver were all marked with a darkness tattoo. Carter Hall and Star Girl return to help Clark deal with Slade's re-emergence after he kidnaps Lois.

[Runtime : ~42'] - [Orig. Air Date: 10 Dec 2010]

Smallville - 10x10 - Luthor

Episode Summary : 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.

[Runtime : ~42'] - [Orig. Air Date: 03 Dec 2010]