In River's End in 1982, Sibyl contacts an employee, Russell, at an electronics store.

Mack and Deke are left behind in 1982. Mack believes that Coulson's explosion took out the Chronicoms and that the Zephyr left because their mission is over.

Mack leaves Deke.

Russell Starts building a robot body for Sibyl.

Mack gets a new place and builds and paints toy cars. Deke finds him, but Mack wants to be alone.

In 1983, Mack finally joins Deke in a night out at a bar. Deke is the lead singer of a band, The Deke Squad.

Deke tells Mack that the band is a cover for their spy operation. It includes Roxy Glass, Tommy and Ronnie Chang AKA the Chang Gang, Olga Pachinko, and Cricket.

Deke takes Mack to a S.H.I.E.L.D. base, their base of operations. He tells him that Coulson's mind survived the explosion by staying safe on a hard drive.

They are able to talk to him through a TV. Coulson tells them that Sibyl is still alive by slipping into the River's End power supply.

Sibyl kills Russell and builds new Hunter robots.

Mack and Deke have a fight.

A Hunter robot kills Cricket.

Roxy tells Mack that Deke checks in on young Mack and his brother every two weeks. He brings them gifts.

Hunter robots invade the base.

A Hunter robot is about to attack Deke and the Chang Gang when Mack and Roxy kill it.

Coulson believes that the time stream is on the base, which is why the Hunters are there.

They are able to destroy the Sibyl robot, but one robot gets away with the time stream, meaning Sibyl is still alive.

Mack and Deke visit Mack's childhood home.

After twenty months being stranded, the Zephyr returns and May and Yo-Yo find Mack, Deke, and Coulson.

The robot brings the time stream to Nathaniel Malick.