Warriors of Kudlak ( TV story ) Warriors of Kudlak was the fourth story in the first series of " The Sarah Jane Adventures " . It was comprised of the fifth and sixth episodes of the regular series . It was during this story that Luke Smith and Clyde Langer went into space for the first time and Luke was given his first kiss from a girl . Synopsis . Children have been going missing , but how ? Will Luke and Clyde win Combat 3000 ? And who is the mysterious Mr Kudlak ? Plot . Part 1 . A new laser tag centre , Combat 3000 , has opened in London . Lance Metcalf , a teenage boy from Clyde and Luke Smith ' s school , is reported missing after going there . Mr Smith tells Sarah that twenty - four children have gone missing from all across England in places where other branches of Combat 3000 have opened . Luke tries in vain to master the art of telling jokes . Neither does he understand games . Clyde takes him under his wing to Combat 3000 to teach him how fun fun is . Sarah learns there have been mysterious storms at the time of all the disappearances connected with Combat 3000 . Investigating , Maria and she also find that Mark Grantham and a humanoid , insectoid alien called Kudlak are abducting the children for an unseen " Mistress " . Luke and Clyde have survived Round One of Combat 3000 and are challenged to make it to the door to the championships , facing other accomplished players . Clyde notices they were the top two players , with Luke edging ahead of Clyde : Clyde puts it down to beginners luck on Luke ' s part . They enter into the second round , where should they lose their alloted ten lives they lose the game . They manage to make it near the door , with Luke on six lives and Clyde on four . When Luke and Clyde approach the door , they are attacked . They successfully push through the assault , but are locked in a room from which they disappear . Mr . Grantham points an alien gun at Sarah and Maria , but Sarah uses her sonic lipstick to escape . Maria and Sarah arrive in a different room where they are confronted by Kudlak . . . They have arrived too late to save Luke and Clyde . On a screen they see them transported to space by a transmat beam . Part 2 . Sarah and Maria create a diversion and escape Kudlak . Back at Bannerman Road , Mr . Smith informs them Kudlak is a member of the Uvodni race , who were part of a planetary alliance fighting against the Malakh . The Malakh won the war , but the Uvodni continued fighting . Kudlak was injured on the front line and forced to leave the fighting . He was sent as part of an Imperial Fleet to recruit " warriors " from other worlds . His ship was led by a Mistress , who kept the patriotism and bloodlust in Kudlak alive . After decades of recruiting ( mostly human ) children via Combat 3000 , Kudlak and Mr . Grantham have abducted Clyde and Luke . Meanwhile , Luke and Clyde find themselves on a spaceship . They rescue other children from holding crates , including Lance and a girl called Jen . On Earth , Mr . Grantham breaks into Sarah ' s home , but is overpowered by an electric shock . Back on the Uvodni ship , the children make their way to a shuttlecraft , but are recaptured . Sarah and Maria blackmail Grantham into transmatting them to the Uvodni ship , where they talk to the Mistress . When Kudlak brings the children to the Mistress , everyone is reunited . They discover the Mistress ' s true identity as a face on a computer screen , with no real person behind it . Kudlak is stopped by Luke before he kills anyone . Luke has discovered a ten - year - old message from the Uvodni Emperor , stating that an armistice had been reached with the Malakh . Having no programming to understand the concept of peace , the Mistress buried the message and continued to command Kudlak to recruit warriors , even though her missions no longer had any real point . With the truth revealed , Kudlak destroys the Mistress , releases the children and swears to do what he can to reunite the surviving recruits with their families . Back on Earth , Grantham has escaped , but Sarah decides not to have him arrested . After chatting with her friends , Jen decides to thank Luke for saving her with a kiss . This kiss , being his first , leaves him quite confused , since he ' s never experienced romantic inklings before . Luke asks Clyde if he has any knowledge to share about dealing with girls , but it ' s the one mystery even he can ' t figure out . Story notes . Location filming . Barry Island