Question: What episode in the science-fiction series that is on Fox was the character David Robert Jones introduced?
Context: "Brave New World" is the two-part finale of the fourth season of the Fox science-fiction drama television series "Fringe", and the series' 86th and 87th episodes overall.  The episode, at the time of its writing and production, was created to be a possible series finale if the show was not renewed for a final season.  As such, the episode not only resolves many of the plot lines introduced for the fourth season, but also several long-running plots throughout the show's run.  In the episode, the Fringe division learns that Walter Bishop's old colleague, William Bell, has been in control of David Robert Jones' actions to collapse both universes in an attempt to create a new universe under his own control, and the Fringe team must make sacrifices to put an end to Bell's plans. David Robert Jones (8 January 1947 – 10 January 2016), known professionally as David Bowie ( ), was an English singer, songwriter and actor.  He was a leading figure in popular music for over five decades, acclaimed by critics and other musicians for his innovative work.  His career was marked by reinvention and visual presentation, his music and stagecraft significantly influencing popular music.  During his lifetime, his record sales, estimated at 140 million albums worldwide, made him one of the world's best-selling music artists.  In the UK, he was awarded nine platinum album certifications, eleven gold and eight silver, releasing eleven number-one albums.  In the US, he received five platinum and nine gold certifications.  He was inducted into the Rock and Roll Hall of Fame in 1996. "There's More Than One of Everything" is the finale of the first season of the American science fiction drama television series "Fringe".  The finale followed David Robert Jones' (Jared Harris) attempts to open a doorway to the parallel universe, while the Fringe team tries to stop him.  It ends with FBI agent Olivia Dunham (Anna Torv) discovering a startling secret about Massive Dynamic founder William Bell (Leonard Nimoy). "In Which We Meet Mr. Jones" is the seventh episode of the first season of the American science fiction drama television series "Fringe".  The story begins when a FBI agent collapses from a parasite constricting his heart, and Olivia must meet with biochemist David Robert Jones (Jared Harris) in Frankfurt in order to find a cure.  It featured the first appearance by Harris. "Safe" is the tenth episode of the first season of the American science fiction drama television series "Fringe".  It begins when a group uses technology to walk through a bank's wall and steal a safe deposit box.  Its contents contain special equipment meant to ultimately break David Robert Jones (Jared Harris) out of his Frankfurt jail. David Robert Jones, {'1': ", '2': ", '3': ", '4': "} (28 January 1941 – 19 November 2010) was a British born zoologist and biologist. "Ability" is the fourteenth episode of the first season of the American science fiction drama television series "Fringe".  The plot follows the Fringe team's investigation into ZFT and David Robert Jones, who claims that Olivia is a soldier equipped with abilities to fight in an upcoming war between two parallel universes.  A skeptical Olivia must discover a way to avoid unleashing an attack that causes fatal accelerated cellular growth in its victims. David Robert Jones (born 9 November 1966) is a former CEO of Havas and Havas Worldwide (formerly known as Euro RSCG Worldwide), and cofounder of global youth forum One Young World.  He is author of "Who Cares Wins: Why Good Business Is Better Business" (Pearson/FT Publishing, November 2011) and the creator of the "Social Business Idea". "The End of All Things" is the fourteenth episode of the fourth season of the American science-fiction drama television series "Fringe", and the series' 79th episode overall.  In the episode, the fringe team investigates Olivia's (Anna Torv) disappearance, ultimately tracing back to David Robert Jones (guest star Jared Harris). Jared Francis Harris (born 24 August 1961) is an English actor, best known for his roles as Lane Pryce on the AMC and in the drama series "Mad Men", David Robert Jones on the Fox science-fiction series "Fringe", King George VI in the Netflix Original historical series "The Crown", and Anderson Dawes on the Syfy science-fiction series "The Expanse".  He has also had significant supporting roles in films such as "The Curious Case of Benjamin Button" (2008), "" (2011), "Lincoln" (2012), and "Allied" (2016).
Answer: the seventh episode