The Harvey Girls are getting a special surprise--- the arrival of the iconicly wonderful Richie Rich! Then, things go rough at a game-gone rogue when joy is being collected. Lessons taught during a murder mystery party bring Richie to a close relationship of friends.

Lotta takes a personality quiz and learns she's supposed to be evil. Tiny and Lucretia offer to get the girls' costumes for the Horn-A-Corn convention.

Audrey, Dot, Lotta, Richie, Lucretia and Tiny arrive at Horn-A-Con and decide to divide and conquer, breaking into three groups for maximum adventure.

Richie assembles a team to turn Stu into a social media celebrity. Richie has a sheltered talking dog named Dollar, who doesn't get much of being adorable. Suddenly, when he gets scared by lots of fireworks, he makes new animal friends.

Richie works overtime to get the Bloogey Boys to like him. Dot fights the urge to open a forbidden door in Richie's flying mansion.

A suspicious Audrey investigates the Bow. Richie helps Lotta launch her dream business: selling custom stuffed animals in San Francisco.

When Fredo publicly mocks a movie, Lotta challenges him to make his own. Lotta catches her pet bunny "in like" with her kitty nemesis.

Dot faces off against Chevron in the North American Origami Gam Prix. Someone ruined Lotta's elaborate pasta sculpture -- and she wants payback.

Lucretia learns that her puppeteer idol isn't a very nice person. Audrey battles her big sister for the best score on an old arcade game.

In honor of #ThrowbackThursday, each Harvey Girl shares a story from her past. Gerald takes the gang to visit his hometown.

Frufru pretends to be psychic. Sheriff Dot takes on Los Stinko Banditos, a smelly crew that looks a lot like the Bloogey Boys.

A butter spill threatens the Harvey Lake ecosystem. Audrey, Dot and Lotta are determined to throw Richie the best birthday party ever.