[No.] 18B [Episode Name] Ripple's Web Sprayer [Air Date] January 21, 2006 [Description] 
When Jim and TED have to put a signal light on a slope, TED volunteers to do it by controlling the Lunar Crawler. But TED accidentally breaks the emergency break, and the Crawler starts going backwards towards Stinky Lake. So Jim must figure out a way to stop the Crawler from going further.