The heroes find themselves in a situation that would be difficult for normal mortals; but for them, it should be relatively easy. They have standard AppliedPhlebotinum for this situation...

Only this time, they ''don't'' have it. The heroes are aware of the Phlebotinum, and how helpful it would be in this situation, but they realize that they have forgotten to bring it. Someone left it at home, or in the car, or someplace else that they can't get back to at the moment. Or maybe it, or its keeper, has been stolen from them. Our heroes will have to think of another plan...

Not to be confused with ForgottenPhlebotinum, where the ''writers'' unintentionally forget they've previously created an easy solution to the present conflict. This trope is for times when the writers intentionally have characters leave the phlebotinum behind and thus currently don't have it handy.

See also LeftYourLifesaverBehind.



[[folder:Anime & Manga]]
* The show ''Anime/{{Doraemon}}'' frequently uses this. You'd think with 2,000 gadgets the main characters have plenty of things to defeat the enemies with, but as it turns out all the useful things are broken and being repaired.
* A ''Manga/FairyTail'' omake has Lucy and Happy go try to exterminate poisonous rats in an old mansion. However, their only tool is a fly swatter, as Happy is in spaz mode and Lucy forgot the keys she needs to use her summoning magic.
* Happens three times in fairly close proximity in ''Anime/DragonBallSuper'': The first time the heroes faced Goku Black, Goku forgot to bring the Senzu Beans, forcing them to retreat when they all got injured. Later, the heroes decide that the best way to deal with the immortal Zamasu is to trap him using the Mafuba (Evil Containment Wave) technique, but when they arrive in the future, Goku Black blasts the time machine...with the jar they need still inside because Goku forgot to bring it with him. Future Trunks manages to repair the jar with superglue and uses the Mafuba, but unfortunately for them, Goku ''also'' forgot the PaperTalisman (this time leaving it at Kame House in the main timeline).

* At one occasion in ''Fanfic/KyonBigDamnHero'', Kyon forgets his [[BadassLongcoat coat]] and [[MorphWeapon weapons]] after leaving for school in a hurry. It becomes critical when [[spoiler:the Combine attack the school]], and causes Nonoko's temporary MagicalGirl upgrade.
* [[ This Friendship Is Magic fan comic]] gives an explanation on why the Mane Cast didn't take Sombra down within 10 seconds of meeting him.

[[folder:Films -- Animated]]
* ''WesternAnimation/{{Megamind}}'': The villainous main character has a weapon that would easily defeat his opponent... but he left it in the car... which is invisible... and he can't remember where he left it.
* ''Disney/{{Aladdin}}'': Al left Genie's lamp in his room to go looking for Jasmine and before he knew it, the EvilChancellor had taken over and sent him to places that 9th-century Arabs didn't even know existed!
* ''WesternAnimation/MyLittlePonyEquestriaGirlsMagicalMovieNight'': In "Movie Magic", the human Rainbow Dash and Twilight Sparkle were the only members of the group who brought the amulets that allow them to use their powers. As a result, catching a thief is made a bit harder. After this incident, the other girls resolve to wear their amulets more often.

[[folder:Films -- Live-Action]]
* ''Film/{{Serenity}}'': "It'd sure be nice to have some grenades right about now..."
** Made funnier by the fact the captain made him leave them behind in the first place.
** Later:
--> '''Mal:''' Tell me you brought them this time.
--> (''Jayne throws some grenades.'')
* Jarringly played in ''Film/TheGiantSpiderInvasion'', where the two [[TheProfessor science types]] come up with a machine to ReverseThePolarity and send the spiders back to their home dimension or something, but on the way to use it against the spiders, they realize they forgot it at the lab and have to go back.
* Film/{{Deadpool}} has lots of guns, as shown in a LockAndLoadMontage, at the ready for when he's ready to kill Francis and save Vanessa... which he forgets in the cab that he takes to the final confrontation.

* In ''Literature/ABrothersPrice'' Jerin gets into a situation where he is in danger of being raped, but he didn't think that would happen, so he left his ChastityDagger behind.
* Subverted in ''Literature/DragonBones''. Ward gets into a tricky situation. Should be no problem, because one of his companions is a powerful mage? The problem is, the mage has no idea where Ward is. [[spoiler: However, Ward still has that ring, to which the mage is enslaved (ancient magic, Ward didn't do it himself, he just inherited the ring). He tries to call Oreg, who indeed arrives, in a rather bad condition as he can't spend time away from his master ... not comfortably, at least. However, he recovers and then helps them escape.]]


* In a classic ''Series/DoctorWho'' episode, the Doctor and Sarah Jane are locked in a prison cell, and are trying to open the door. When Sarah Jane suggests using the [[MagicTool sonic screwdriver]], the Doctor tells her, "It's in the TARDIS," and she groans.
* Barely averted in the ''Series/StargateSG1'' episode "Avenger 2.0". Felger and Sam go to an alien planet to deliver an antivirus that would solve the problem of the week. At the last minute, Felger's assistant Chloe stops him to remind him to actually ''bring'' the CD that the antivirus was on.

* On [[ this page]] of ''Webcomic/TheOrderOfTheStick'', all of Roy and Elan's magic weapons and other useful items are missing, because Elan ''sent them to be cleaned''.

* In one ''WesternAnimation/{{Animaniacs}}'' episode, Wakko and Dr. Scratchensniff get stuck in the elevator. Scratchy suggests to Wakko that he "pull something big and silly from your [[BagOfHolding gaggy bag]]" to help them. Wakko responds that he didn't bring it.
* ''WesternAnimation/{{Futurama}}'' - ''Love's Labours Lost in Space'': Bender forgets to replenish the ship's dark matter fuel. [[spoiler: Luckily it turns out their newly aquired TeamPet Nibbler [[SolidGoldPoop excretes it]].]]