Emily and Riley choose a dance captain and deal with the qualifier duet.

Miss Kate and the Next Step dancers hold an Open House to welcome prospective new dancers to the studio. Meanwhile, some veteran A-Troupe members say their farewells as they prepare to move on.

Riley asks James for an impossible favour for the studio.

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After the studio competes at the qualifier, Riley reconsiders her position as studio head. Noah and Amanda grow closer, but his back injury might get in the way.

James and Alfie represent the Next Step at the final qualifier.

As A-Troupe dances at the Qualifier, Amanda struggles to find the right time to share her feelings for Noah, while Noah continues to hide his back injury.

Alfie asks Riley to go on a trip. She does, but not where he planned.

Guest choreographer, Stephanie, challenges the dancers at the afternoon auditions.

Riley assigns a trio competition to prepare for the first Regionals qualifier. Amanda and Michelle are threatened by Richelle.

Riley asks James for some space to sort out her feelings for Alfie and Alfie misinterprets where Riley is at.

Noah's rehearsal prompts a discussion about which trio should be showcased to represent The Next Step. Meanwhile, Michelle wants Alfie to help her bolster her concentration skills on the dance floor; and Sloane gets pranked by Amy and Cassie.

Michelle and Riley have a lunch date and take a walk down memory lane; Noah, afraid of losing his spot on A-Troupe, continues to hide his back troubles.

Auditions for A-Troupe get underway, and Amanda and Eldon make big decisions. Meanwhile, Skylar and Cierra demonstrate their sisterly devotion to one another when they make a pact.

The new A-Troupe dancers are revealed, and Piper decides to form a club with her nervous fellow newbies; Riley is offered the opportunity of a lifetime, and Cierra and Amanda both vie for the final open spot on A-Troupe.

James prepares to leave for London.

Piper has trouble keeping a secret. Meanwhile, Amanda learns a secret skill from Henry; and an undesirable task is given to Amy and Sloane.

With Sloane disqualified and Michelle injured, the team does not have enough dancers to dance in the final.

Amy makes LaTroy a proposition, but things get complicated when Sloane discovers new feelings; West and Eldon have an adventure in London.

Alfie considers Noah's health problems and surprises Riley with a plan for the qualifiers. Meanwhile, Amanda and Noah open up to one another; and LaTroy makes an unexpected decision in the wake of receiving news from his dad.

Auditions for the qualifier duet have added significance in the wake of Noah's diagnosis. Meanwhile, LaTroy plots to salvage Sloane and Amy's friendship; and Alfie opens up to Riley about his feelings for her.

Riley makes a mistake with Alfie and tries to make it up to him.

Riley questions her relationship with Alfie.

The team competes in the first round at regionals but it is not what they expected.

Riley considers removing the team from competition because of a change in the qualifier rules. Meanwhile, the guys go on the hunt for Eldon's missing phone in London; and Sloane has trouble accepting Amy and LaTroy's relationship.