Kate and Will Spicer's brother, Tom, has Fragile X Syndrome, the most common form of inherited learning disability. He is also a massive fan of Lars Ulrich from Metallica. They made a promise to Tom that they would get him to meet Lars. Tom's dream is their promise. Together they went on a Mission to Lars.

Lars Ulrich
as Self

Jasmin St. Claire
as Self

William Spicer
as Self - voice

Tom Spicer
as Self

Kate Spicer
as Self - voice

James Hetfield
as Self

Kirk Hammett
as Self

Robert Trujillo
as Self

Kerry King
as Self