Lloyd thinks he's developed a very vocal conscience after accidentally swallowing a dust mite named Alvi - Alvi likes being in Lloyd, and so as Lloyd's 'conscience' convinces him to do good deeds, Lloyd does not suspect the truth...

Nutbum the tardigrade turns up making frantic efforts to get Lloyd to do something... but what? Convinced it is serious, Lloyd does whatever he can to translate what Nutbum is saying, but communication is not as easy as he hopes.

Excitement turns to sadness when Lloyd discovers that his family's move to a whole new Biggo house means that he'll never see Abacus again, so Lloyd makes it his mission to find Abacus a new best friend!