The Invisible Threat! (Also Silent) (S01E50)

S01E01 Welcome to Area Fifty-Something S01E02 Danger Wears a Diaper S01E03 The Toy From Another World S01E04 The Bath Effect S01E05 The Fruit of All Evil S01E06 Frenemy Mine S01E07 Maximum B.O.B. S01E08 It Came... on a Field Trip S01E09 Educational Television S01E10 Flipped Out S01E11 The Wormhole Has Turned! S01E12 The Two Faces of Dr. Cockroach S01E13 The Thing with One Brain S01E14 Night of the Living Dog S01E15 Attack of the Movie Night! S01E16 98 Pound Cockroach S01E17 When Nature Shrieks S01E18 Vornicarn S01E19 It Got Out of Hand S01E20 The Sound of Fear S01E21 The Sorry Syndrome S01E22 Speak Not the Q Word S01E23 Screaming Your Calls S01E24 The Time-Out That Wouldn't End S01E25 Curse of the Man-Beast S01E26 It Came From Level Z S01E27 Number Seven! S01E28 The Friend Who Wasn't There S01E29 Driven to Madness S01E30 The Beast From 20,000 Gallons S01E31 The Sneezing Horror S01E32 Prisoner of the Dark Dimension S01E33 I Predict Horror S01E34 Destroy Chickie D! S01E35 The Mystery of Dr. Cutter S01E36 The Partymobile That Invaded Earth S01E37 Ginormicat! S01E38 My Monster, My Master S01E39 It Came From Channel 5 S01E40 It Ruled With an Iron Fist S01E41 This Ball Must Be Dodged S01E42 It Spoke With Authority S01E43 Debtor Alive! S01E44 The Grade that Wouldn't Pass! S01E45 You Can't Breathe in a Diner in Space! S01E46 Race to the End...Zone! S01E47 When Luck Runs Out S01E48 That Which Cannot Be Unseen S01E49 Bride of the Internet S01E50 The Invisible Threat! (Also Silent)