Hey Arnold, Operation Ruthless / The Vacant Lot

Arnold and Gerald get stranded downtown in fancy dress in "Downtown As Fruits", while in "Eugene's Bike", Arnold destroys Eugene's bike, and tries to make it up to him.

Arnold discovers Helga's secret love poems in "Helga's Poetry", then in "Field Trip", Arnold and Grandma set out to free an old tortoise from the city zoo.

Helga finds Arnold's lost hat in "Arnold's Hat", while in "The Stoop Kid", Arnold makes friends with a bully, and helps to overcome his fear of leaving the steps outside his house.

Helga tries to be more like a girl in "Helga's Makeover", while in "The Old Building", Grandma tries to stop the demolition of an old cinema.

Arnold and Gerald go on a date with some older women in "Sixth Grade Girls", then in "The Baseball", Arnold goes to see the last game played by one of his heroes.

The city is hit by a heatwave in "Heat Wave", but it doesn't last long because right afterwards in "Snow Day", things get cold enough to close the school for a day!

Arnold falls in love with a sixth grader in "Arnold in Love", then in "The Vacant Lot", Arnold and the gang clean up a field to play baseball, only to find the adults take over.

Arnold decides to have the best Saturday ever in "The List", then in "The Train", Grandpa tells Arnold another spooky story about a mysterious haunted train.

Arnold learns martial arts from Grandma in "Arnold Gets Mugged", then Grandpa lends a hand in "Roughin' It", taking Arnold and Gerald on a camping trip... but don't eat the berries!

A mysterious package arrives for someone at the boarding house in "Door 16", then Arnold gets an unwelcome room-mate in "Arnold as Cupid".

Arnold has trouble with a basketball coach in "Bench Warmer", while in "Cool Jerk", Arnold makes a new friend but discovers they're not so cool after all.

Arnold and the gang get stuck downtown in "Das Subway", while in "Wheezin' Ed", Gerald tells everyone about the amazing legend of Elk Island.

Arnold helps a classroom tough guy with his maths in "Arnold the Tutor", then in "Gerald Comes Over", Gerald spends the night at Arnold's house.

Arnold and Helga are finalists in a city contest in "The Spelling Bee", then in "Pigeon Man", Arnold persuades a local hermit to come back to the old neighbourhood.

Helga's 'perfect' older sister comes home from college in "Olga Comes Home", then Arnold and Gerald get a once-in-70-years chance to see a comet in "Sally's Comet".

Arnold's just having one of those careless days - first he loses his pig, Abner, in "Abner Comes Home", then in "Sewer King", Arnold loses Grandpa's watch!

Arnold defends Eugene when he's accused of ringing the school fire alarm in "False Alarm", then in "World Records", Arnold and Gerald try to get into the book of records.

Arnold makes Helga disappear in "Magic Show", but she's back for "24 Hours To Live", when Harold tells Arnold that he has just 24 hours before he'll beat him up.

Arnold designs a float for a city parade in "Runaway Float", and then in "Part-Time Friends", Gerald becomes Arnold's boss at the flower shop, putting their friendship to the test.

Arnold's Christmas: Arnold tries to find My Hyunh's long-lost daughter to reunite the pair for Christmas. Meanwhile, Helga discovers the true meaning of Christmas as well.