amber alert was issued after toddler ronnie tran and his mother were kidnapped by two women from their home in des moines , washington , on tuesday .
police say the 40-year-old mother was stunned with a taser and bound with plastic ties before being driven with her son to a house in fife .
abducted : two-year-old ronnie tran -lrb- above -rrb- and his mother were held hostage by his grandmother who kidnapped the pair with a taser from their home .
the mother was then tied to a cupboard in the garage while the boy was taken inside the home .