The crew meets their blue-hued doppelgängers when they crash-land on an alien planet where kids call all the shots.

1933. In the months following the Dodson trial, an aimless Perry leans on Della to keep the law firm afloat. While Paul accepts a job from an unlikely source, corrupt…

After a manhunt pegs brothers Rafael and Mateo Gallardo for the McCutcheon murder, Perry initially resists taking the case… until a hunch reels him in. Later, Della goes on a…

Becky decides it’s time to introduce Tyler to Beverly Rose, but she is skeptical of Tyler’s bonding approach. Elsewhere, Jackie believes someone has hacked Bev’s credit card when several frivolous…

As Hitchcock and Scully microwave a lasagna for exactly 21 minutes and 30 seconds, the squad races against the clock to catch a hacker.

Summer brings new jobs and budding romance. But the mood shifts when Dustin’s radio picks up a Russian broadcast, and Will senses something is wrong.

With El and Max looking for Billy, Will declares a day without girls. Steve and Dustin go on a stakeout, and Joyce and Hopper return to Hawkins Lab.

Supergirl and the team go head to head against Rama Khan and Leviathan. Meanwhile, Lena and Lex must join forces when Project Non Nocere fails, leaving the two siblings in…

Kara attempts to mend her relationship with Lena. J’onn J’onzz takes a deep dive into his memories while Kelly tries to help an old friend.

Eph must choose between Zack’s safety and the safety of the citizens of NYC. Meanwhile, his relationship with Nora reaches a critical impasse, and Gus and Angel assemble an unlikely…

When a less then brilliant townie (guest star Sean Astin) hits a big cash jackpot at the Montecito, Danny draws the challenging task of securing the winner and his bag…

The Secretary of the Navy partners Gibbs with Dr. Samantha Ryan after top secret information is leaked by someone on the inside.

Jack poses as Rossler and manages to trace one of the canisters of nerve gas, but he goes against orders from the president when the terrorists target a shopping mall….

Lynn orders Curtis to take Jack into custody for violating presidential orders, but Jack breaks away from Curtis when Nathanson contacts him through Audrey and offers information on the location…

Logan wrestles with his conscience when he learns that Martha is riding in the motorcade with the Suvarovs. Audrey convinces Curtis to take action as Lynn continues to abuse his…

Jack interrogates Henderson’s wife about her husband’s connection to the terrorists. Lynn begs his sister to return his stolen keycard, while Tony regains consciousness and learns of Michelle’s fate. Martha…

Jack takes Henderson to CTU for questioning. Once there, he faces an unhappy reunion with his daughter, Kim. Mike appeals to Martha for help as Logan faces pressure from his…

Jack and Lynn must take action when they discover that the nerve gas is breaking through the protective seals that are keeping the CTU survivors alive. Chloe wrestles with her…

Jack contacts Mike and asks for a secret meeting in hopes of gathering evidence against Walt. Martha begs Aaron for help, while a desperate Walt tries to force Logan to…

Jack tracks down a man who has a connection to the terrorists. Logan is forced to grant him immunity in exchange for information on their whereabouts. Mike and Martha argue…

Jack is captured by the terrorists, who use Derek as leverage to force him to compromise CTU’s assault operation. Logan refuses to give into the terrorist demands as the time…

Jack returns to CTU and has an emotional reunion with Audrey, while Curtis tracks the Russians and the stolen nerve gas. Walt sends in a hit man to silence Jack….

Sheldon and Amy are thrilled when their super asymmetry theory is proven by two physicists, until they try to kick Amy off the Nobel nomination. Also, Bernadette gets one of…

When competitors Pemberton and Campbell charm America on a publicity tour, Sheldon and Amy try to bring Nobel laureates Kip Thorne, George Smoot and Frances Arnold to their side. Also,…

Kripke has proof that Dr. Pemberton plagiarized his thesis in college, and Sheldon and Amy aren’t sure if they should turn him in or not; Wolowitz learns that Bernadette wasn’t…

A terrorist organization seems to be tied in with the violent death of an art dealer, until the victim’s troubled son with ties to a fanatic religious group is investigated.