Ash, Misty, and Brock have all gotten completely lost trying to find the
  Fuschia City gym, located in the middle of nowhere. They stop for a break,
  and let out a couple of their Pokémon out for a stretch. Misty tells Psyduck,
  who was drinking from a stream nearby, that cold water makes a headache
  worse, then comments that sometimes when she looks at him, she gets a
  headache as well. Misty offers Psyduck for Brock's Vulpix, but he declines.
  She retreats Psyduck and the three go on their way, with a Venonat secretly
  spying on them in the trees.
 
      They carefully cross a bridge, and arrive at a Japanese
  style dwelling.
  The decide to look for someone there to ask for directions to the gym, and go
  in, with the Venonat still following them. Once inside, Ash and his friends
  cannot find anyone. Misty leans against a wall, and disappears. Brock
  inspects the wall, and declares it to be a secret door. He pounds on it, and
  it opens, revealing Misty inside. Suddenly, the Venonat appears. He runs off,
  and Ash and his friends follow him. Ash accidentally steps on a Voltorb in
  the floor, and is shocked. They all then dash up some stairs, and see the
  Venonat at the end of a hallway. Ash runs toward it, but runs smack into an
  invisible wall. They all decide to leave, and Ash slams into another wall.
  Brock voices his suspicion of that they have fallen into a trap. Brock hopes
  that whoever did it isn't wanting to steal their Pokémon, as he doesn't want
  to lose his Vulpix. Ash climbs up to look through a window, and the whole
  wall tips out over a deep valley. Brock and Misty think that he's dead, but
  soon find him hanging onto the wall for dear life. They pull him up and all
  agree at how dangerous the house is.
 
      The other wall opens, and Ash and his friends see the
  Venonat again. Ash
  rushes through, to see several Ninja Stars flying at him. Misty and Brock go
  through, and find him pinned onto the panel. They hear a laugh behind them,
  and turn to see Iya, and Ninja Warrior. Ash yells at her for throwing the
  Stars around, and Misty agrees, asking Brock for support. Brock, however, is
  smitten, and he tries to make her acquaintance. She pushes him over in
  disgust, and informs them all that the house is a Ninja training camp. She
  tells them that the Venonat had told her of three stupid people who entered
  the house, and that she won't let them leave until she battles them. Ash
  accepts, and sends out Bulbasaur against Iya's Venonat. Bulbasaur uses
  tackle, but Venonat dodges and uses Stun Spore. Bulbasaur blows the dust away
  and uses Vine Whip, but Venonat dodges the attack again. Venonat uses
  Psybeam, and Bulbasaur gets confused, but shakes it off quickly. Bulbasaur
  uses Leech Seed, and finally connects, winning.
 
      A Voltorb rolls in, and explodes, filling the room with
  smoke. A voice is
  heard behind Iya, and scolds her for her ignorance. Iya apologizes, calling
  him her brother. Brock misinterprets the words, and tries to suck up to him,
  only to be bashed over the head with Misty's mallet. He tells them that he
  will not let Ash and his friends leave until they battle him. When Ash asks
  exactly who he is, he responds that he is Koga, the Fuschia Gym leader. Ash
  is surprised that it is the gym, but is glad that it is.
 
      Outside, Team Rocket find the building. They plan to steal
  the poisonous
  Pokémon that Koga uses, saying that they would be perfect for Team Rocket's
  schemes. She tosses a rose to James, who pricks his finger. After he
  complains, Jessie throws her binoculars at him, and tells him to come inside.
 
      Back inside, Ash accepts Koga's challenge. Koga pulls out a
  Soul Badge
  telling Ash that he will win it if he wins. Ash assures him that he will. Ash
  sends out Pidgeotto, and Koga sends out Venonat. The Venonat immediately
  evolves into Venomoth, much to Ash's worry. Venomoth uses Stun Spore, and
  Pidegeotto's Whirlwind doesn't succeed in blowing the spores away. Venomoth
  then uses Sleep Powder, and Pidgeotto falls asleep. Ash then sends out
  Charmander, who succeeds in blocking Venomoth's Stun Spore with Flamethrower.
  Suddenly, the ceiling caves in. Team Rocket drops in, and does a rather
  dramatic and drawn out motto. Meowth tells Koga to hand over the poisonous
  Pokémon, but Ash tells him to go away. Jessie and James try to move, but
  can't very well due to the elaborate costumes they're wearing. They throw
  them off and send out Arbok and Weezing. Ash and Koga decide to join together
  and send out Charmander, Venomoth, and Venonat. Team Rocket throws some sort
  of webby stuff, and all three Pokémon can't move. Pikachu jumps out, but is
  wrapped up as well. Misty is about to send out Starmie, but Psyduck comes out
  instead. Psyduck proceeds to thoroughly annoy Misty. Ash has her use his
  Pokédex to find out what Psyduck's attacks are. After two very unsuccessful
  Tail Whip and Scratch attacks, Koga pulls a cord, and several Voltorb fall
  from the ceiling. Jessie and Meowth don't know what they are, and James fills
  them in. It's too late, though, and they explode. Ash, Koga, and the rest,
  along with there Pokémon run through a door, and into a strange room on a
  slant. They try to take off the webby stuff on their Pokémon, but to no
  avail.
 
      Soon enough, Team Rocket bursts in. Meowth uses the slanted
  floor to
  their advantage, and rolls a Voltorb at Ash and his friends. It explodes, and
  when the dust settles, Psyduck is running around clutching his head. Misty
  tries to return him, but is unsuccessful. Meowth gets perturbed, and kicks
  Psyduck repeatedly. Psyduck's headache becomes worse, and he suddenly
  releases a Disability attack at Team Rocket, immobilizing them. Ash then uses
  Confusion, and sends Team Rocket flying into the air. The continuous energy
  released from Psyduck melts away the webbing on the other Pokémon and they
  are very happy. Dexter explains that Psyduck can use the attacks that he did
  when his headache gets severe.
 
      Koga is grateful that Team Rocket is gone and is very
  impressed. He asks
  if Misty would like to trade for a Venonat or Venomoth, but Misty refuses,
  hugging Psyduck. Ash realizes that his match with Koga is still unfinished,
  and the group goes outside. Koga sends out Golbat to fight Ash's Charmander.
  Golbat disorients Charmander with a Screech attack, and he ends up
  accidentally scorching Brock with Flamethrower. He finally hits Golbat's
  wing, and Ash has him finish Golbat out with Fire Spin. Koga gives the Soul
  Badge to Ash, congratulating him. Ash, Misty, and Brock then continue on
  their way.
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