The sixth and final season of The Hills, an American reality television series, consists of 12 episodes and was broadcast on MTV.

The season was filmed primarily in Los Angeles, California, with additional footage in Crested Butte, Colorado; Miami, Florida; and Costa Rica, between January and July 2010.

Fans and critics widely declared it to be the worst season of the series, as the "reality" portion of its reality-TV genre became strained and the scripted stories were seen as increasingly ridiculous, along with the general unhappiness with Kristin Cavallari as the show's "lead character" instead of Lauren.

The Hills focuses on the lives of Kristin Cavallari, Audrina Patridge, Lo Bosworth, Heidi Montag, and Stephanie Pratt.

After receiving widespread criticism after having ten cosmetic surgery procedures in one day, Montag unveils the results to her family.

Audrina finds herself conflicted with her relationship with her on-again/off-again boyfriend Justin Brescia, while Bosworth and the female Pratt are depicted as mutual friends of all.

Upon the conclusion of their month-long morning marathon of The Hills, titled "RetroMTV Brunch", MTV aired an alternate ending to the series on August 9, 2013.

The fourth episode of the season, "This Is Goodbye", which aired on May 18, 2010, marked the final appearance of Heidi Montag and Spencer Pratt from The Hills.

Originally, he was supposed to return after anger management and a six-week hiatus from the series, but his behavior later worsened causing him to be completely removed from the cast.

[1] Heidi filed and then dropped false charges against The Hills creator Adam Divello claiming sexual harassment.