Question: How much did this American animated TV series and media franchise for which Kris Zimmerman directed episodes, gross worldwide in retail sales?

Context paragraphs:
Animax (South Korea): Animax is a South Korean television channel operated under the joint venture between Sony Pictures Television International & KT SkyLife.  Since its launch on April 29, 2006, its primarily programming is Japanese animated TV series and films, and it broadcasts South Korean animated TV series under the South Korean regulations.  Originally an exclusive channel to KT SkyLife satellite television subscribers, it made debut on the other platform when it launched on KT's IPTV service Olleh TV.

Oscar's Orchestra: Oscar's Orchestra is a British children's animated TV series that ran from 1994 to 1996 comprising a total of three seasons and 39 episodes.  The series was produced by the popular British animation studio Collingwood O'Hare Entertainment (who is also famous for producing other such animated TV series and films as "Dennis the Menace", "Captain Zed and the Zee Zone", "The Secret Show" and "Rarg") in association with Warner Music Vision and Europe Images and was originally shown on the BBC as part of their children's block CBBC.  It also aired on the British children's cable networks The Children's Channel (TCC) and Nickleodeon and has broadcast in over more than 100 different countries worldwide such as ARD in Germany, France 2 in France and ABC in Australia.

Christopher Jones (comics): Christopher Jones (born October 14, 1969) is an American comic book artist living in Minneapolis, Minnesota.  He contributes artwork for DC Comics' Young Justice (2011-2013), based on the animated TV series of the same name & written by Greg Weisman, and Marvel's (2012–present), based on the animated TV series of the same name & written by Christopher Yost.  Christopher Jones has previously contributed art to The Batman Strikes!  (2004-2008), based on the animated TV series, The Batman, is the co-creator of Dr. Blink Superhero Shrink and has drawn various projects for DC, Marvel, Disney, and other publishers, ranging from kids' titles such as Superhero Squad to horror titles such as Re-Animator.

Firefly (franchise): The "Firefly" media franchise is an American space Western media franchise created by Joss Whedon and produced by Mutant Enemy Productions.  The franchise includes the TV series "Firefly", the film "Serenity", and other media.

Power Rangers: Power Rangers is an American entertainment and merchandising franchise built around a live action superhero television series.  Produced first by Saban Entertainment, later by BVS Entertainment, and today by SCG Power Rangers, the television series takes much of its footage from the Japanese tokusatsu "Super Sentai", produced by Toei Company.  The first "Power Rangers" entry, "Mighty Morphin Power Rangers", debuted on August 28, 1993, and helped launch the Fox Kids programming block of the 1990s, during which it catapulted into popular culture along with a line of action figures and other toys by Bandai.  s of 2001 , the media franchise has generated over $6 billion in retail sales worldwide.

Kris Zimmerman: Kris Zimmerman Salter (born December 12, 1958 in Cleveland, Ohio) is an American voice and casting director in the animation and video game industry.  Her major works include the "Metal Gear Solid" series.  In the cartoons, she has directed episodes for "Ben 10", "The Real Adventures of Jonny Quest", "Regular Show" and "Fish Hooks".

SpongeBob SquarePants: SpongeBob SquarePants is an American animated television series created by marine biologist and animator Stephen Hillenburg for Nickelodeon.  The series chronicles the adventures and endeavors of the title character and his various friends in the fictional underwater city of Bikini Bottom.  The series' popularity has made it a media franchise, as well as the highest rated series to ever air on Nickelodeon, and the most distributed property of MTV Networks.  As of 2015, the media franchise has generated $12 billion in merchandising revenue for Nickelodeon.

Pound Puppies: Pound Puppies was a popular toy line sold by Tonka in the 1980s.  It later inspired an animated TV special, two animated TV series, and a feature film.  Shipments of the toys over five years generated sales of $300 million in 35 countries.

Rino Romano: Rino Romano (born December 1, 1969) is a Canadian voice actor who has voiced Batman in the animated TV series "The Batman", Spider-Man in the animated TV series "Spider-Man Unlimited", Eduardo Rivera in "Extreme Ghostbusters", Luis Sera in "Resident Evil 4", Scorp in the "Skylanders" franchise" and the original Tuxedo Mask in the 90's English dub of the anime series "Sailor Moon".

Ben 10: Ben 10 is an American animated TV series and media franchise created by Man of Action Studios and produced by Cartoon Network Studios.  The franchise revolves around a boy named Ben Tennyson who acquires a watch-like alien device (the Omnitrix) which allows the wearer to transform into ten different alien creatures.  The "Ben 10" franchise has received wide critical acclaim, winning three Emmy Awards.  Worldwide it has grossed over $4.5 billion in retail sales.  The franchise has four movies, all of which aired on Cartoon Network between August 2007 and March 2012.  With a 12-year old franchise, it is the longest Cartoon Network original series to date.

Supporting paragraphs: Kris Zimmerman Ben 10
Answer: $4.5 billion