Question: The winner of season 21 of "Dancing with the Stars" stars with her brother in a web series that has how many episodes?

Context paragraphs:
Amy York Rubin: Amy York Rubin is an American director, writer, producer and web series creator.  She created and starred in the award-winning web series, "Little Horribles", and has directed numerous episodes of other television and web series including "Casual", "I'm Sorry", "Foursome", and "Alone Together".

Out with Dad (web series): Out With Dad is a Canadian web series created, written, directed, and produced by Jason Leaver.  The series is about a teenage lesbian named Rose and the process of her coming out to her single father.  It has won various web series awards and has screened at numerous festivals, including the Los Angeles Web Series Festival.  In 2017, the fifth season, which consists of 5 episodes, was announced as the final season of the series.

Bindi Irwin: Bindi Sue Irwin (born 24 July 1998) is an Australian-American actress, television personality, conservationist, singer, and dancer.  She is the daughter of the late conservationist and television personality Steve Irwin and his conservationist and author wife Terri Irwin, owner of the Australia Zoo.  Bindi's younger brother is Robert Irwin, a television personality, photographer and grandson of naturist and herpetologist Bob Irwin.  Bindi has been involved in acting, singing, dancing, rapping, game show hosting, and has created two instructional fitness DVDs.  She is also known for winning season 21 of "Dancing with the Stars" (U.S.).

Growing Up Wild: Growing Up Wild is a 24 episode web series which premiered July 21, 2012 on The Pet Collective on YouTube, starring Robert and Bindi Irwin, children of "The Crocodile Hunter"' s Steve Irwin.  Both Robert and Bindi live at the center of the 1,500 acre Australia Zoo.  This is the thriving animal legacy of their father, and location for this series.  Growing Up Wild features the siblings carrying on the work of their parents, educating audiences to the nature of exotic animals with a particular focus that not every animal makes a suitable domestic pet.

The Sound of Your Heart (TV series): The Sound Of Your Heart (Hangul: 마음의 소리 / RR: Maeumui Sori) is a South Korean sitcom starring Lee Kwang-soo and Jung So-min.  The sitcom is based on the Webtoon "The Sound of Heart."  The first 10 episodes were aired as a web series on November 7, 2016 through Naver TV Cast on Mondays at 6:00 (KST), and the remaining 10 episodes aired from December 2016.  The web series hit 100 million views on Sohu TV and ranked No. 1 among Korean dramas on the site.  On Naver TV Cast, the web series has more than 40 million views in South Korea as of February 2017.  It is also now airing on Netflix.

Rich Keeble: Rich Keeble is a British actor and voiceover artist.  He has appeared in a number of television series, commercials and web series.  He co-writes and co-stars in the award winning comedy web series "All in the Method".  He also stars in the comedy web series "Rich Keeble Vanity Project" and "Rules of Life".

The Bannen Way: The Bannen Way is an American crime drama web series starring Mark Gantt as Neal Bannen, a third generation criminal who wants to get out of the con man lifestyle he's been living.  The show officially premiered on Sony Pictures Entertainment owned Crackle on January 6, 2010, but the first three episodes began streaming on December 23, 2009 to qualify for the Streamy Awards.  The fact that this series, along with several others, were regionally geoblocked led to a controversy over eligibility for the Streamys because it was not made fully available on the World Wide Web.  The controversy led to a ruling by the Streamys that geoblocked web series are eligible.  "The Bannen Way" is a production of Sony Pictures Television.  The executive producers are Mark Gantt and Jesse Warren.  Gantt's co-stars are Vanessa Marcil, Gabriel Tigerman, Michael Ironside, and Robert Forster.  New episodes were streamed weekdays through January 22, 2010.  It was not renewed for a second season.  The entire series was released onto DVD as a movie on July 20, 2010.

Backpackers (web series): Backpackers is a Canadian comedy web series, which aired in 2013 on CTV.ca and CW Seed.  The CW picked up the series for television broadcast, for which material from the web series was edited into four half-hour episodes, and six new episodes were produced.  "Backpackers" made its television premiere on July 14, 2014.  The series stars Dillon Casey and Noah Reid as Brandon and Ryan, two friends on a backpacking trip across Europe after Ryan and his girlfriend Beth (Meghan Heffern) experience cold feet over their pending engagement.  Ryan's stolen journal is posted on the Internet and goes viral, sending Ryan, Brandon, and Brandon's brother Andrew (Giacomo Gianniotti) on another journey, to recover the journal and fulfill Ryan's dream of becoming a published author.

The Most Popular Girls in School: The Most Popular Girls in School (abbreviated MPGIS) is an American stop-motion animated comedy web series that debuted on YouTube on May 1, 2012.  Created by Mark Cope and Carlo Moss, the series animates Barbie, Ken and other fashion dolls, usually with customized costumes and hairstyles, as various characters.  "MPGIS" follows the exploits of the fictional Overland Park High School cheerleading squad and their friends, family and enemies. " Variety" described the series as ""Mean Girls" meets "South Park"".  The first episode has been viewed over 8.5 million times, and many episodes have received views in the millions.  Over 80 episodes have been released to date.

List of The Most Popular Girls in School episodes: "The Most Popular Girls in School" (abbreviated "MPGIS") is an American stop-motion animated comedy web series that debuted on YouTube on May 1, 2012.  Created by Mark Cope and Carlo Moss, the series animates Barbie, Ken and other fashion dolls, usually with customized costumes and hairstyles, as various characters.  "MPGIS" follows the exploits of the fictional Overland Park High School cheerleading squad and their friends, family and enemies. " Variety" described the series as ""Mean Girls" meets "South Park"".  To date, over 80 episodes have been released.  The first episode has been viewed over 8.5 million times, and many episodes have received views in the millions.  After a two year hiatus, the fifth season premiered June 13, 2017.

Supporting paragraphs: Growing Up Wild Bindi Irwin
Answer: 24