IdiomCenter.com

cм.
[throw sb in at the deep end]
[walk out on]
[бросить в беде]
[предоставить самому себе]
abandon sb to fend for oneself
leave sb to the mercy of fate
"We cannot leave our brothers and sisters to the mercy of fate or the cruelty or vagaries of nature". Prime Minister Atal Behari Vajpayee (news.bbc.co.uk)