VIDEO: Sneak Peek - All-New Episodes of NBC's PARENTHOOD Return Following Olympics

The greatest changes of their lives begin when NBC's Parenthood returns Thursday February 27 at 10/9c on NBC after the Olympics. Get a sneak peek below!

"Parenthood" is the critically acclaimed one-hour drama inspired by the box office hit of the same name. This reimagined and updated Universal Television/Imagine Entertainment production follows the trials and tribulations of the very large, colorful and imperfect Braverman family.

Sarah Braverman (Lauren Graham, "Gilmore Girls") is a single mother with two teenage kids - the bright but rebellious Amber (Mae Whitman, "Scott Pilgrim vs. the World"), who is living on her own, and sullen and sensitive Drew (Miles Heizer, "ER") who heads to Berkeley this year.

On the home front, Sarah's larger-than-life, headstrong father, Zeek (Craig T. Nelson, "Family Stone," "Coach"), and pillar-of-strength mother Camille (Bonnie Bedelia, "Heart Like a Wheel") are continuously dealing with their own marital issues.

Meanwhile, Sarah's sister and complete antithesis, Julia (Erika Christensen, "Traffic"), attempts to adjust to life as a full-time mom after recently quitting her job as high-powered attorney, while her husband Joel (Sam Jaeger, "Eli Stone") leans into his new role as breadwinner. These pressures are compounded by friction between their daughter, Sydney (Savannah Paige Rae), and their newly adopted son, Victor (newcomer Xolo Mariduena).

Crosby (Dax Shepard, "Baby Mama"), Sarah's younger brother who once struggled with commitment issues, is now married to former flame Jasmine (Joy Bryant, "Antwone Fisher"). Together, they are raising their young son, Jabbar (Tyree Brown) and new baby Aida.

However, it's Adam (Peter Krause, "Six Feet Under"), the oldest Braverman sibling, who has had to relinquish his expectations about what constitutes a "normal" family as he and his quietly forceful and resilient wife Kristina (Monica Potter, "Trust Me"), more devoted than ever having recently battled and defeated her breast cancer, continue to cope with their eccentric son Max (Max Burkholder, "Brother & Sisters"), who has Asperger's Syndrome, while raising a toddler. Their eldest now is living away from home at college across the country.

Although each sibling and family has its own share of life and everyday challenges to grapple with, they still manage to be there for each other in their hours of need.

Serving as executive producers are Oscar winners Ron Howard and Brian Grazer ("A Beautiful Mind," "Frost/Nixon"), Emmy winner Jason Katims ("Friday Night Lights"), Lawrence Trilling ("Pushing Daisies") and David Hudgins ("Friday Night Lights").

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