  Today's high-power laser systems are capable of reaching photon intensities
up to $10^{22}$ W/cm^2, generating plasmas when interacting with material. The
high intensity and ultrashort laser pulse duration (fs) make direct observation
of plasma dynamics a challenging task. In the field of laser-plasma physics and
especially for the acceleration of ions, the spatio-temporal intensity
distribution is one of the most critical aspects. We describe a novel method
based on a single-shot (i.e. single laser pulse) chirped probing scheme, taking
nine sequential frames at framerates up to THz. This technique, to which we
refer as temporally resolved intensity contouring (TRIC) enables single-shot
measurement of laser-plasma dynamics. Using TRIC, we demonstrate the
reconstruction of the complete spatio-temporal intensity distribution of a
high-power laser pulse in the focal plane at full pulse energy with sub
picosecond resolution.
