  We report the discovery of a new Small Magellanic Cloud Pulsar Wind Nebula
(PWN) at the edge of the Supernova Remnant (SNR)-DEM S5. The pulsar powered
object has a cometary morphology similar to the Galactic PWN analogs PSR
B1951+32 and 'the mouse'. It is travelling supersonically through the
interstellar medium. We estimate the Pulsar kick velocity to be in the range of
700-2000 km/s for an age between 28-10 kyr. The radio spectral index for this
SNR PWN pulsar system is flat (-0.29 $\pm$ 0.01) consistent with other similar
objects. We infer that the putative pulsar has a radio spectral index of -1.8,
which is typical for Galactic pulsars. We searched for dispersion measures
(DMs) up to 1000 cm/pc^3 but found no convincing candidates with a S/N greater
than 8. We produce a polarisation map for this PWN at 5500 MHz and find a mean
fractional polarisation of P $\sim 23$ percent. The X-ray power-law spectrum
(Gamma $\sim 2$) is indicative of non-thermal synchrotron emission as is
expected from PWN-pulsar system. Finally, we detect DEM S5 in Infrared (IR)
bands. Our IR photometric measurements strongly indicate the presence of
shocked gas which is expected for SNRs. However, it is unusual to detect such
IR emission in a SNR with a supersonic bow-shock PWN. We also find a
low-velocity HI cloud of $\sim 107$ km/s which is possibly interacting with DEM
S5. SNR DEM S5 is the first confirmed detection of a pulsar-powered bow shock
nebula found outside the Galaxy.
