Read on for the spoilers!

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EMMA FINDS HERSELF SLOWLY FREEZING TO DEATH WHEN ELSA TRAPS HER INSIDE AN ICE CAVE, AND IN THE ENCHANTED FOREST OF THE PAST, ANNA TRIES TO TEACH A MEEK DAVID TO FIGHT WARLORD BO PEEP – WHO IS THREATENING TO TAKE HIS AND HIS MOTHER’S FARM AWAY IF THEY DON’T PAY HER PRICE, ON ABC’S “ONCE UPON A TIME”

“White Out” – While desperately trying to find her sister Anna, Elsa is startled by Emma and accidentally traps them both inside an ice cave, with the frozen temperature placing Emma’s life in peril. Regina, depressed over her likely breakup with Robin Hood, secludes herself away from the town and Henry, which saddens her son. And with the townspeople considering Mary Margaret their leader, she faces her first leadership task in trying to re-start a generator and restore the town’s electricity after Elsa freezes and damages the power lines. Meanwhile, in the Enchanted Forest of the past, Anna tries to teach a meek David to fight Bo Peep, a brutal warlord who is threatening to take his and his mother’s farm away if they don’t pay her price, on “Once Upon a Time,” SUNDAY, OCTOBER 5 (8:00-9:00 p.m., ET) on the ABC Television Network.

Guest starring are Lee Arenberg as Leroy/Grumpy, Beverley Elliott as Granny, Michael Coleman as Happy, Georgina Haig as Elsa, Elizabeth Lail as Anna, Robin Weigert as Bo Peep, Gabrielle Rose as Ruth and Sean Owen Roberts as ruffian.

TENSIONS RUN HIGH WHEN THE LANGSTONS HOST A FAMILY DINNER WITH UNEXPECTED GUESTS, ON ABC’S “RESURRECTION”

“Old Scars” – Margaret convinces Lucille to host a dinner to celebrate Jacob’s return, but unexpected guests strain relations in the Langston family to the breaking point. Meanwhile, Bellamy continues to research the history of the mysterious bones, and Rachael receives unsettling news about her baby, on “Resurrection,” SUNDAY, OCTOBER 19 (9:00-10:01 p.m. ET) on the ABC Television Network.

Guest cast includes Michelle Fairley as Margaret Langston, Kathleen Munroe as Rachael Braidwood, April Billingsley as Barbara Langston, Lori Beth Sikes as Janine Hale, Glenn Fleshler as Mikey Enders, Faye Foley as young Margaret and Naomi Lavette as Tina.

CASTLE IS ON THE HUNT FOR LEADS IN HIS MYSTERIOUS DISAPPEARANCE, ON ABC’S “CASTLE”

“Montreal” – While the team investigates the murder of a toy company CEO, Castle uncovers a lead to his mysterious disappearance, launching him into a dangerous investigation of his own, on “Castle,” MONDAY, OCTOBER 6 (10:01-11:00 p.m., ET) on the ABC Television Network.

Guest Cast: Matt Letscher as Jenkins, Maya Stojan as Tory Ellis, Lilli Birdsell as Samantha Williger, Gina Ravera as Marsha Stoller, and Brian Tichnell as Matt Monroe.

CASTLE & BECKETT ARE ON THE HUNT FOR “THE INVISIBLE MAN,” ON ABC’S “CASTLE”

“Clear & Present Danger” – When a pool shark is murdered by an unseen force, Castle and Becket uncover evidence that the killer may have paranormal powers. Meanwhile, Castle and Beckett attempt to get their lives back to normal following his disappearance, on “Castle,” MONDAY, OCTOBER 13 (10:01-11:00 p.m., ET) on the ABC Television Network.

Guest Cast: Nick McCallum as William Fairwick, Tate Ellington as Henry Wright, Tom Wright as Fats Shepherd, Maya Stojan as Tory Ellis, Chad Michael Collins as Tom Talmadge.

JULIETTE OPENS UP TO RAYNA AND DEACON HAS AN ADMIRER ON TOUR, ON “NASHVILLE,” WEDNESDAY, OCTOBER 15

“I Feel Sorry For Me” – Rayna goes after Sadie Stone as a new artist to sign to her record label Highway 65. In order to woo her, Rayna invites Sadie out for a girl’s day on the town, which she thinks may help to seal the deal. Juliette continues to try her best at hiding her pregnancy but when she starts to have stomach pains and mood swings, she has to let down her wall. Later, an assertive and sultry backup singer takes a liking to Deacon but his down in the dumps attitude does nothing but shut her out. Then, Zoey witnesses odd behavior between Scarlett and Gunnar and lets her inner jealousy get the best of her. She tries to mend things at the Bluebird but they end up backfiring terribly. Meanwhile, Avery continues to use alcohol to drown his sorrows, which only takes him to new lows, and Jeff has ulterior motives as he pursues Teddy and the girls, on “Nashville,” WEDNESDAY, OCTOBER 15 (10:00-11:00 p.m., ET) on the ABC Television Network.

Guest starring are Ed Amatrudo as Glenn Goodman, David Alford as Bucky Dawes, Kourtney Hansen as Emily, Chaley Rose as Zoey Dalton, Laura Benanti as Sadie Stone, Brette Taylor as Pam York

MEREDITH DIVES INTO ELLIS’ PAST ON ABC’S “GREY’S ANATOMY”

Guest Starring Kate Burton (“Scandal”), Sally Pressman (“Army Wives”), and Kelly McCreary (“Dr. Emily Owens, MD”)

“Only Mama Knows” – Secrets from Ellis Grey’s past come to light when Meredith watches old videos and reads through her mother’s journals. Meanwhile, Maggie rocks the hospital with an unexpected announcement; Alex gets new responsibilities and Callie focuses her attention on the Veterans’ project on “Grey’s Anatomy,” THURSDAY, OCTOBER 16 (8:00-9:00 p.m., ET) on the ABC Television Network.

Guest cast TBA.