Grenade Grenades were a form of explosive weapon . They commonly had a pin release or were lit to begin the detonation sequence . Instances of use . Captain Hopper used gas grenades to distract the Cybermen . ( TV : " The Tomb of the Cybermen " ) British Army soldiers used grenades against Robot Yeti when they invaded the London Underground . ( TV : " The Web of Fear " ) The Second Doctor was able to make home made grenades out of a medical kit for Jamie McCrimmon and Cully to use against the Quark s . ( TV : " The Dominators " ) UNIT soldiers used grenades against Cybermen , but they were only partially effective . ( TV : " The Invasion " ) The Second Doctor dismantled a grenade and used its explosive to blow open General Smythe ' s safe and get a map of the war zones . ( TV : " The War Games " ) The Master ordered George Philips to kill the Third Doctor with a grenade . However , he broke free of the Master ' s hypnosis and exploded the grenade upon himself . UNIT later used grenades while battling the Auton s near the Beacon Hill Research Establishment . ( TV : " Terror of the Autons " ) A UNIT soldier used a grenade to blow apart an Axon . ( TV : " The Claws of Axos " ) Captain Mike Yates put a grenade in the hydraulics section of the Ex - Cav suit , destroying it . ( AUDIO : " Prisoners of the Lake " ) The Overlord s used gas grenades in an attempt to draw the Mutts out of a cave system . ( TV : " The Mutants " ) Mike Yates attempted to kill the Roundhead s that the Master had brought forwards in times by throwing a grenade amongst them . However , the Master sent them back to the 17th century before the grenade exploded . ( TV : " The Time Monster " ) UNIT used grenades to try to destroy some giant maggots . ( TV : " The Green Death " ) UNIT again used grenades to ward off a Tyrannosaurus rex . ( TV : " Invasion of the Dinosaurs " ) Grenades proved ineffective against the K1 robot . ( TV : " Robot " ) The Fourth Doctor tried to use a grenade to kill his opponent Goth in the APC net . He only succeeded in wounding Goth . ( TV : " The Deadly Assassin " ) The Oracle was able to manufacture fission grenade s . ( TV : " Underworld " ) The Foamasi made use of cocoon grenade s to entangle opponents . ( TV : " The Leisure Hive " ) Peri Brown destroyed a Dalek with a grenade . ( TV : " Revelation of the Daleks " ) The Sixth Doctor accelerated the photosynthesis rate of the Vervoid s by throwing flash grenades at them . ( TV : " Terror of the Vervoids " ) The Bannermen used grenades against the Chimeron s . ( TV : " Delta and the Bannermen " ) The British Army used toxin grenades against Soviet troops . ( TV : " The Curse of Fenric " ) John Benton ' s father was killed by a grenade in Normandy during World War II . ( HOMEVID : " Wartime " ) In Turkey , Ace accidentally embarrassed Massoud in front of his men when she tossed a grenade to him , frightening him . ( PROSE : " " ) On Gallifrey , the Sontaran Stor tried to destroy Gallifrey and the rest of the galaxy with a grenade . The blast was avoided when the Fourth Doctor used the De - mat Gun on Stor . ( TV : " The Invasion of Time " ) The Sontaran Strax blew up a genetic splicer in the Crystal Palace with a grenade . While throwing the grenade , Strax mentioned that there was " no problem in life that [ couldn ' t ] be solved with a grenade " . ( COMIC : " The Crystal Throne " )