With pressure mounting and the finale in sight, the two remaining teams of entrepreneurs reunite to learn trade secrets from some of the region’s top industry leaders.

Superman's worst nightmare comes to life, and Lois confronts Leslie Larr. Meanwhile, Lana, Kyle and Sarah agree to stay to help General Lane.

While Dr. Porter and Miles venture into Willoughby in search of allies within the town, Monroe seizes an opportunity to surprise the Patriots.

Determined to derail the Patriot plans, Miles and Monroe rush to Austin with Jason, Charlie and Connor after Jason comes to them with crucial information.

Chuck and Blair's relationship is put to the test.

A very pregnant Dorota gets married!

Superman's worst nightmare comes to life, and Lois confronts Leslie Larr. Meanwhile, Lana, Kyle and Sarah agree to stay to help General Lane.

Lois and Clark struggle as a couple, while Chrissy adjusts to running the Smallville Gazette with Lois.

Seg is confronted with an impossible decision that will shape the future of the El legacy and the entire universe: stop Brainiac from bottling Kandor or let Krypton perish - so Superman may live.

Gordon seeks to capture Jack Gruber, a deranged electrical genius who escapes Arkham.

When a key witness in a homicide ends up dead in police custody, Gordon suspects it was an inside job.

While Gordon and Bullock hunt down a killer who targets victims with severe phobias, Fish Mooney reveals a secret of Oswald's, prompting Maroni to test his loyalty.

Seg is confronted with an impossible decision that will shape the future of the El legacy and the entire universe: stop Brainiac from bottling Kandor or let Krypton perish - so Superman may live.

Chuck and Blair's relationship is put to the test.

A very pregnant Dorota gets married!

After the failed coup, the Voice of Rao orders Daron-Vex to punish the conspirators. Lyta and Dev-Em go in search of Jayna in the Outlands, but get more than they bargained for.

Clark opens up to Lois about his ongoing struggle with visions and admits that there is only one person who might be able to help.

Lois reaches out to her father, retired General Lane, as Clark's visions become worse during heated arguments with both Jonathan and Jordan.

Dr. William van der Woodsen unexpectedly shows up in Manhattan.

William continues to stir up problems.

Harry struggles to find balance with his new human form.

A team of detectives, led by Brian Tarpey travel to Moscow to interview Lugovoy and Kovtun, now the prime suspects behind Litvinenko's murder.

Sean and Christian struggle to keep McNamara/Troy thriving in a failing economy.

Sean makes unusual attempts to battle his insomnia. Christian and Kimber begin a joint business venture to alleviate financial strains.

Sean and Teddy make a surprising announcement. Sean discovers some troubling news about his daughter, Annie.