Melissa has been reluctantly signed up with a female mentorship program "You Go, Girl!", and isn't looking forward to it. However, when she accidentally joins Savannah, the two get assigned into the "Spy Little Sister!" mentorship program instead, and have to save the science fair from a chaotic robot.
As Milo and Zack prepare for the upcoming Build-A-Bot Contest, they ask Melissa if she wants to come. She declince as her father signed her up for the female mentorship program with an elderly woman to knit and have tea. As she walks along, she sees Brick and Savannah who appear to be fighting bad guys. Melissa inspects their time limousine, however Savannah returns to the limo first and pushes Melissa in before going into the Time Stream and leaving Brick behind.
In the Time Stream, Savannah tries to wipe Melissa's memory but she suggests being her mentor instead. The time traveler dismisses this until Mr. Block calls and assumes Savannah is Melissa's mentor for the Spy Little Sister program, forcing her to comply. Mr. Block tells them that a robot will destroy Danville in a few hours and informs them to stop it. Melissa tells Savannah that her friends are in a robot building contest at her school and they set off.
Meanwhile, Brick is saddened about being left behind(having been left behind multiple times in his life) and runs into Melissa's original mentor and spends the day with her.
As the robot absorbs other robots, Savannah fights it and Zack tells Melissa that he and Milo used a red lightbulb from Doof's stuff. With specific knowledge, Savannah and Melissa go back in time to Milo's house before the contest to talk to Doof. They arrive but Savannah finds Doof cutting his toenails and leaves for fifteen minutes later. He tells them it was in a box he brought to the school.
They head to the school and Melissa warns her friends while Savannah gets the lightbulb, however it fuses with Savannah's phone and other projects before they secure it. They destroy it and Savannah says goodbye before retrieving Brick from Melissa's original mentor, who calls him needy after he leaves.
For a full transcript of "Spy Little Sister!", click here.
|The image gallery for Spy Little Sister! may be viewed here.|
- The episode may be a reference to the song, "Cry Little Sister".
- This is the first episode to feature Mr. Block, Brick and Savannah without Cavendish and Dakota making an appearance.
- This episode strongly references Melissa's lack of a mother figure as that's likely why Richard signed her up for the program.
- Amanda shows jealousy when Milo gives Joni a towel to wipe her face, ending with her shaking Joni while saying 'He's mine!' showing that she has now developed a full crush on him.
- As of this episode, all of the trio has traveled through time.
- Phineas and Ferb:
- The way Doofenshmirtz's boxes have the word "evil" crossed out is similar to how he crossed out the word "evil" on his science book in the Phineas and Ferb episode "Doof 101", in which he takes the role of his daughter's science teacher.
- The newspapers featuring events that just happened is similar to the magazine in "Imperfect Storm" that is apparently trying to compete with the internet by having their stories about things that just happened.
- At the beginning of this episode we see Milo, Zack, and Melissa all eating lunch in a cafeteria, however in "Some Like it Yacht", Principal Milder said that the school has no school lunch program. Unless they built one between seasons.
- Sabrina Carpenter as Melissa Chase
- Ming-Na Wen as Savannah
- Al Yankovic as Milo Murphy
- Mekia Curtis as Zack Underwood
- Dan Povenmire as Heinz Doofenshmirtz
- Mark Hamill as Mr. Block
- Brett Dalton as Brick
- Phoebe S. Hughes as Joni
- Chrissie Fit as Amanda Lopez
- Germany: September 19, 2018
- India: November 13, 2018
- Southeast Asia: April 1, 2019
"Field of Screams"
"Dog Walker, Runner, Screamer"
|Secondary Story Arc Episodes|
|Llama Incident Arc||The Undergrounders • Rooting for the Enemy • Murphy's Lard • We're Going to the Zoo • Battle of the Bands • The Llama Incident • Missing Milo|
|Milo and Amanda Arc||Smooth Opera-tor • School Dance • Cake 'Splosion! • Managing Murphy's Law • Spy Little Sister! • Ride Along Little Doggie|
|Mr. Drako Arc||Athledecamathalon • We're Going to the Zoo • School Dance • The Math Book • Some Like it Yacht • Backward to School Night • Milo Murphy's Halloween Scream-A-Torium! • Picture Day|
|Just Getting Started Arc||Secrets and Pies • School Dance • Battle of the Bands • Disaster of My Dreams • Managing Murphy's Law|
|Lost Dakotas Arc||Backward to School Night • Love Toboggan • The Island of Lost Dakotas • The Phineas and Ferb Effect • Snow Way Out|
|Episodes in Italics indicate an episode that doesn't center around the subject of an arc but is still related to it.|