A

"surprise"

birthday

party

for

Jack

astounds

Will

when

his

estranged

older

brother

Sam

turns

up

at

the

fête

at

Grace's

invitation.

Not

only

do

sparks

fly

between

the

brothers,

but

electricity

of

a

different

sort

crackles

between

Grace

and

Sam.

Meanwhile,

Karen

flashes

her

platinum

card

for

Jack

as

the

pair

shop

until

they

drop

at

a

boutique

where

the

snooty

salesmen

previously

had

snubbed

Jack.