In the winter 2022, a multidisciplinary experiment in the Balearic Sea (northwestern Mediterranean Sea) combined multiplatform in-situ observations with high-resolution numerical simulations to investigate the evolution of a mesoscale oceanic front. The study focuses on analyzing the energy transfer from the mesoscale front to submesoscale cyclonic eddies (SCEs) and understanding their impact on subduction processes from the ocean surface to the interior, using a numerical simulation with 650 m horizontal resolution. The frontal evolution exhibited two distinct phases: (i) an intensification phase driven by strain-induced frontogenesis, and (ii) a subsequent decay phase occurring under conditions favorable to overturning instabilities, triggered by a down-front wind event. These processes enhanced vertical velocities through an ageostrophic secondary circulation across the front, contributing to upper-ocean restratification. Following the wind event, the front decayed and fragmented into smaller-scale structures, leading to the formation of SCEs along its edges. The formation of SCEs was associated with the frontal decay, as well as with centrifugal and gravitational instabilities, which transferred energy from the mesoscale front to the SCEs. These eddies exhibited a three-dimensional helical-spiral recirculation pattern that facilitated the vertical transport of water parcels. Submesoscale eddy-induced frontogenesis drove subduction into the mixed layer, intensified by submesoscale instabilities and guided by downward-sloping isopycnal surfaces at the eddy periphery.