Toa in Quarantine is the first Toa Tales storyline, centered on Tahu and his siblings (Kopaka, Lewa, Gali, Pohatu, Onua) in quarantine due to a virus outbreak on the island of Mata Nui.
Allusions to the story of BIONICLE, specifically during it's first year with the outbreak confirmed to be Makuta while Ahkmou is shown to be conspiring with it.
This series was not intended to be continued when it was made. During the production of The Brick Tahu Saga, Syp The Mighty decided to retroactively consider Toa in Quarantine to be the first storyline of Toa Tales.
Syp and iDs5621 reprise their respective roles as Tahu/Pohatu and Onua from Misguided, with iDs also taking over as Kopaka from ChickenBond2.