Clark struggles to help Jordan who is grappling with a new power. Meanwhile, Lois enlists Clark's help which leads to a surprise encounter.

Em takes the day off to spend time with her mom but races into action when she comes across an unresponsive cave diver. Will confides in Vince about his personal anger issues.

Blair tries to gain membership in an exclusive social club.

Nate decides to confront Juliet.

Lois, Chrissy and Clark team up to piece together the significance of Smallville to Morgan Edge.

Lana reaches out to Lois and Clark when Kyle starts behaving strangely. Meanwhile, Jonathan opens up to Jordan. Lastly, Sarah storms out after accusing her mom of always covering for her dad.

After a lesson in sex education leaves the gang more confused than ever, Veronica decides to organise a make-out party at the Pembrooke. Elsewhere, Jughead attempts to help Ethel out of some trouble only to find himself in hot water as well.

Em takes the day off to spend time with her mom but races into action when she comes across an unresponsive cave diver. Will confides in Vince about his personal anger issues.

Ship's captain Dorran promised his family he would build a super-modern underground lair on a hill outside Canterbury. But the epic build hits choppy waters... will Dorran fulfil his promise?

After a lesson in sex education leaves the gang more confused than ever, Veronica decides to organise a make-out party at the Pembrooke. Elsewhere, Jughead attempts to help Ethel out of some trouble only to find himself in hot water as well.

Blair tries to gain membership in an exclusive social club.

Nate decides to confront Juliet.

After enlisting Archie's help, Cheryl's plan to fool her family spirals out of control. Jughead turns to Veronica for help after finding himself in some trouble, and Betty gives Kevin an ultimatum.

Lois, Chrissy and Clark team up to piece together the significance of Smallville to Morgan Edge.

Lana reaches out to Lois and Clark when Kyle starts behaving strangely. Meanwhile, Jonathan opens up to Jordan. Lastly, Sarah storms out after accusing her mom of always covering for her dad.

A Gossip Girl blast starts a damaging rumour about Serena.

Jenny returns to Manhattan for the chance to meet Tim Gunn.

When a surprise Skitter attack leaves the 2nd Mass without food, Maggie, Ben, Pope and Sara go on a dangerous mission hoping to find supplies. Meanwhile, Tom and Anne discover the Espheni have created something part Espheni, part Skitter, part Hornet... and part human.

The 2nd Mass discovers the source for the seemingly endless supply of enemy forces. With the Volm's help, Tom's leadership begins to spread across the world, but closer to home, he makes an agonising decision that risks one of their own with repercussions for all.

While Jerome becomes obsesses with Penguin at Arkham, Gordon begins to second guess his deal with Sofia.

While Ivy picks her next target, Selina tries to take matters into her own hands. Wanting full control of Gotham, Sofia turns to Lee about the Narrows.

Penguin, Lee and Nygma enlist an unlikely ally as they seek revenge, and Selina asks Bruce for a favor to help rid her of her guilt over Ivy.