British progressive metal band Threshold shows off the powerful guitars and dramatic keyboard rhythms that have made them famous, in this 2003 concert filmed at the intimate De Boerderij nightclub in the Netherlands. The two-hour performance from the band's Critical Mass tour features such favorites as "Phenomenon," "Virtual Isolation," "Fragmentation" and more, as well as clips from Threshold's performance at the 2002 ProgPower USA festival.