The analysis of thin film flow of non-Newtonian fluid with MHD heat transfer in an unsteady stretching sheet in the suspension of variable thickness and thermal conductivity. The governing PDEs are reduced to nonlinear coupled ODEs by applying the appropriate similarity transformations. These coupled nonlinear ODEs subject to the suitable margin conditions and then solved numerically via RK with shooting method. The influences of various parameters on the stream and heat transfer behaviour of the problem are studied through tables and graphs. The friction factor and reduced Nusselt number are obtainable in tables. © 2021, Springer Nature Singapore Pte Ltd.