I don't believe there is a plugin, instead you just need to add the following lines to your .vimrc
file. I'm not sure where it originally came from sorry.
" simple recursive grep
command! -nargs=1 RecurGrep lvimgrep /<args>/gj ./**/*.* | lopen | set nowrap
command! -nargs=1 RecurGrepFast silent exec 'lgrep! <q-args> ./**/*.*' | lopen
nmap ,R :RecurGrep
nmap ,r :RecurGrepFast
nmap ,wR :RecurGrep <cword><CR>
After :RecurGrep
there is a space: :RecurGrep-> <-
such that you don't have to type it every time you use the mapped shortcut.