With the temporal facility on the verge of destruction, Cole and Jones find themselves in the middle of a coup. After a violent encounter ends in an unexpected tragedy, Cole is sent back to 1957 in a last-ditch effort to save humanity while the rest embark on a caravan across the apocalypse to find Titan -- the stronghold of the Witness.

To avoid a suicide mission, Stan must beat Bullock in a DJ battle; Jeff starts drinking psychedelic teas and builds an imaginary musical instrument with Roger's help.

When a bizarre and deadly incident takes place on live television, Agent Onofrio's investigation into it causes Laurel, Gustav and Rochelle to dig deeper into the bug mystery. Luke attempts to cover up his affair with his Chief of Staff, Scarlett, before his opponent for the minority whip position, Senator Ella Poundstone, can make it public.

Marisol deals with a new roommate. Daniela and Carmen’s relationship takes a turn when an unexpected visitor arrives. Zoila gets setup on a blind date, as Genevieve also makes a new friend. Rosie’s suspicions of foul play grow stronger.

Now that Molly’s murder has become a world wide story, Grace becomes the target of social media bullying. While Grace is reeling from the social slander, Stan is forced to turn his attention to fixing her step father James’ situation – a mess that may hit too close to the Molly Ryan case.

After an ISIS inspired attack against a member of the US Armed Services, the FBI asks for Captain Raydor’s help in finding a terrorist, joining the Bureau in a race against the clock before the terrorist can strike again.

Karen realizes she’s very happy to be back working with her clients again, despite putting her love life on hold. April’s new client gets a little too close for comfort, while someone from Marc’s past becomes very present. Kate struggles after learning her ex-fiancé is dating someone else, while Joss plays dirty to get a new client.

Jill's parents come to town to celebrate Yom Kippur and to take care of a matter of life and death.

When a wealthy woman is found dead at the bottom of her stairs, we realize that this was no ordinary slip-and-fall accident. The team is pressed into a game of cat and mouse with a clever killer determined to get away with the perfect crime. Plus, when Maura decides to undergo minor surgery, the surprising part of her healing will be reconnecting with Hope.

After being given the all clear to head home, tensions are still running high in the Adams Foster household. Fragile and skittish from the school lockdown, the family sticks close, but their secrets keep them apart. Callie and Brandon anxiously wait for their moms to address their behavior in Idyllwild while Stef warns everyone to stay off their phones and computers due to the rumors swirling around their family. Meanwhile, Brandon sneaks out to help Cortney move, leading to a major blowup between him and Stef.

Darius reveals his secret to Rachel and tells her he needs to quit the show. Rachel enlists Coleman's help to figure out a way to keep it quiet and reverse his decision. Quinn and Chet find themselves back on the same team as they produce this week's Everlasting episode of powder puff football. Chet brings his baby to work as a bonding moment, causing a stir with all the contestants. Quinn confronts Rachel about her betrayal to the network and also receives some upsetting news from her past.