Question: The winner of season 21 of "Dancing with the Stars" stars with her brother in a web series that has how many episodes?
Sentence (from "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.
Relevant evidence: Yes