Frieda forces new trainee Nicky to question what kind of doctor she wants to be. Meena puts her friendship with Ms McKendrick on the line when a chance to impress Gaskell arises. Serena tests Xavier's mettle, putting him in charge of Sheilagh's recovery.
Vitaly Borker scores $18 million selling designer knock-off eyewear as genuine from his website in Brooklyn, N.Y.; when customers complain, they are threatened with violence, even murder.
While Frank is on the mend Mike and his brother Robbie crisscross Colorado and find a giant cow shaped RV.
When Winn’s father dies, his estranged mother, Mary, reappears trying to reconnect and to explain why she abandoned him all those years ago. Winn is too embittered from his rough childhood to forgive her but when a copycat Toyman attacks, the two must work together to stop him. Mon-El tells Kara something important about the Worldkillers, and Alex becomes suspicious of Myr'nn’s recent behavior.
Richard's plan for a straightforward upgrade on a '62 Ford Galaxie goes south when the Monkeys discover the worst body panel they've ever seen after it returns from sandblasting.
Stan is frustrated with traffic so he goes to the mayor and proposes that the town build a bullet train, but the mayor laughs off the idea; Roger pushes Stan into running for mayor; Stan wins the election but finds himself overwhelmed.
Rachel confronts her mother while Serena gets ambushed someone from her past, threatening her relationships with the remaining contestants. Chet struggles with Gary's offer.
Rio’s feeling the heat from the FBI investigation, so he abruptly shuts down operations, cutting off Beth, Ruby, and Annie's money supply. Their attempt to go back to being ordinary housewives is short-lived when Mary Pat puts the financial squeeze on them -- forcing the three women to commit another heist.
Conrad is hit by a bike and badly sprains his ankle, but works through it when he takes the case of his old medical professor, who is hallucinating visions of her old patients. Devon is tasked with admitting Conrad, who refuses any sort of treatment. Nic tries to navigate her emotions while mourning the loss of a patient and Bell operates on a foreign dignitary with unforeseen complications. Meanwhile, Lane and Bell's relationship grows closer.
Marcus spies a money-making opportunity when the city goes into a frenzy of fundraising at marathon time, and Jason bets Aurelius he can beat him in the big race.
Ariana and Brittany seek relationship advice from Lisa, while Stassi throws a party to relaunch Katie's beauty blog. Kristen's boyfriend Carter questions Sandoval about her night in Mexico with James. Katie and Tom celebrate their first wedding anniversary, while Jax and Brittany's relationship takes a surprising turn.
After consuming the brain of a bachelor playboy, Liv heads to a club to meet up with Clive and Ravi. Meanwhile, Major is assigned an enormous task. Lastly, Clive is still struggling with the arrangement he’s made with Bozzio.
Leila suspects Denier might be Adrian's next target and is determined to save him. But her doubts about Adrian are causing friction with Tess.
Lucifer and Chloe investigate a murder during which a witness claims a winged guardian angel saved her life, causing Lucifer to become paranoid about his own actions. Meanwhile, Pierce and Chloe's relationship takes an interesting turn and Lucifer discovers something that could change everything.
A strange illness begins to show itself while another more familiar one jeopardizes the expedition's most valuable resource: its captain's judgment.
During spring repair season, a 119-car grain train dodges a broken-down locomotive and rail reconstruction projects as it heads across the Rocky Mountains.
In search of much-needed food, Barnes decides to risk strong currents and riptides on a journey by raft to a nearby island. But the voyage has disastrous consequences.
Earth gives birth to life. The building blocks of life are common across the universe, but life is rare. What's so special about Earth that it emerged here? Only here on Earth have we found the elixir of life; water in its three forms. But for life to emerge this isn't enough… huge tides created by the proximity of our perfect Moon, plate tectonics, volcanoes and lightning mean the Earth is a dynamic planet. It's a huge planetary chemical experiment, a bubbling cauldron that transforms dead minerals into deoxyribonucleic acid (DNA); the code for all life.
A wounded Reece faces off with her pursuers miles away, while Jude’s plan to spend quality time with his son leads to a terrifying ordeal. Back at the camp, Hannah escapes to get her first look at the outside world as Dr. Sophie Forbin arrives to assess the larger threat presented by Leah’s unusual virus. Meanwhile, Emma discovers unsettling information which makes her question who she’s really working for.