Home / Series / Catalyst / Aired Order /
  • TheTVDB.com Season ID 1834353
  • Created November 13, 2008
  • Modified October 23, 2023
When available, episode names will be translated into your preferred language. Otherwise they will be shown using the series' origin language.
Name First Aired Runtime Image
S21E01 How Food Works (Part 1)
April 14, 2020
ABC (AU)
60
S21E02 How Food Works (Part 2)
April 21, 2020
ABC (AU)
55
S21E03 Teeth Clinic
April 28, 2020
ABC (AU)
60
S21E04 Asteroid Hunters
May 5, 2020
ABC (AU)
60
S21E05 Building Greener Cities
season finale
May 12, 2020
ABC (AU)
60

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