To bypass being grounded, Young Bennett builds a body-swapping device and trades places with Nira. Meanwhile, the DGS stages a fake commercial to convince Star City that the Mystery Soldier was just a publicity stunt.
With Old Bennett's help, Young Bennett makes a unique music instrument for Sophie that catches the attention of an evil pop star named Trill.
When a mayoral candidate proposes to make the school day longer, Bennett uses AI to create an opponent named Abraham Trutherman to run against her.
The annual Bramble fishing trip goes haywire when Bennett's newest invention turns aquatic animals into giants.
Bennett's ego gets the better of him when he takes over his sister Sophie's Unicorn Commandos fan film. Meanwhile, Inspector Gorgana of the Galactic Alliance meets with the DGS.
Young and Old Bennett build a device called the Emplifier to get Jessica, Liam's latest crush, to notice him. But the Emplifier works too well and turns everyone it encounters into obsessed Liam fans.
The Bramble kids spend too much time on their digital devices. Robber Mama returns and kidnaps Young Bennett.
Bennett devises a get-rich-quick scheme to earn money for a Unicorn Commandos remote controlled monster truck toy. But Young Bennett's actions affects Old Bennett's timeline.
Bennett creates a "sleeping cap" to curtail his grumpiness. But when Bennett's dad Mark uses the cap, the fragile agreement between Earth and the Intergalactic Alliance is jeopardized.
Old Bennett must intervene when both Young Bennett and Snodgrass discover the entrance to the secret elevator.